NSN 5310-00-556-6821 NSA50503, NSA5050-3, BACN10FZ3
Product Details | DOUBLE HEXAGON EXTENDED WASHER SELF-LOCKING NUT
5310-00-556-6821 A nut having 12 drive points, 24 sides, and an integral washer which extends beyond the points or periphery. An integral feature is incorporated for locking on the threads of a mating member.
Part Alternates: NSA50503, NSA5050-3, BACN10FZ3, BACN10HY3M, HW197023, HW19702-3, HW29872, JA1N048S253AA, LH609402, LH6094-02, MILR945, MILR94-5 , RMLH9073, RV4NAYSD253C, TLN10003, TLN1000-3, TLN1001W3, 16137, 55342-1032, 69233SBD, 5310-00-556-6821, 00-556-6821, 5310005566821, 005566821, 553421032
Hardware and Abrasives | Nuts and Washers
| Supply Group (FSG) | NSN Assign. | NIIN | Item Name Code (INC) |
|---|---|---|---|
| 53 | 08 NOV 1974 | 00-556-6821 | 29729 ( NUT, SELF-LOCKING, EXTENDED WASHER, DOUBLE HEXAGON ) |
Demand History | NSN 5310-00-556-6821
| Part Number | Request Date | QTY | Origin |
|---|---|---|---|
| BACN10HY3M | 2025-07-212 | 150 | United States |
| 5310-00-556-6821 | 2020-10-285 | 24 | United States |
| NSA50503 | 2020-07-190 | 550 | CN |
| TLN10003 | 2016-01-29 | 2 | Thailand |
| 5310-00-556-6821 | 2013-10-302 | 5991 | DIBBS |
| 5310-00-556-6821 | 2013-10-287 | 5991 | DIBBS |
| NSA50503 | 2013-02-35 | 41364 | US |
| MILR945 | 2012-04-114 | 1 | US |
| 5310-00-556-6821 | 2012-01-13 | 60 | United States |
Cross Reference | NSN 5310-00-556-6821
| Part Number | Cage Code | Manufacturer |
|---|---|---|
| 55342-1032 | 56878 | SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION |
| 69233SBD | 56878 | SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION |
| BACN10FZ3 | 81205 | THE BOEING COMPANY DBA BOEING |
| BACN10FZ3 | 82918 | THE BOEING COMPANY DBA BOEING |
| BACN10HY3M | 81205 | THE BOEING COMPANY DBA BOEING |
| HW19702-3 | 15653 | ALCOA GLOBAL FASTENERS, INC. |
| HW29872 | 15653 | ALCOA GLOBAL FASTENERS, INC. |
| LH6094-02 | 019L2 | MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA |
| NSA5050-3 | F0224 | ALCOA FIXATIONS SIMMONDS SAS |
| NSA5050-3 | F1303 | PATURLE ACIERS |
| RMLH9073 | 019L2 | MACLEAN-FOGG COMPANY DBA MAC LEAN-ESNA |
| RMLH9073 | 72962 | HARVARD INDUSTRIES INC |
| TLN1000-3 | 17446 | HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS |
| TLN1000-3 | 27624 | SPS TECHNOLOGIES, LLC DBA PB FASTENERS |
| TLN1000-3 | 56878 | SPS TECHNOLOGIES, LLC DBA AEROSPACE DIVISION |
| TLN1000-3 | 92215 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
| TLN1001W3 | 92215 | ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS |
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Related Products | NSN 5310-00-556-6821
Technical Data | NSN 5310-00-556-6821
| Characteristic | Specifications |
|---|---|
| THREAD SERIES | UNJF |
| NOMINAL THREAD SIZE | 0.190 INCHES |
| THREAD QUANTITY PER INCH | 32 |
| THREAD CLASS | 3B |
| THREAD DIRECTION | RIGHT-HAND |
| MATERIAL | STEEL COMP 1040 OR STEEL COMP 1042 OR STEEL COMP 1050 NUT STEEL COMP 8740 WASHER |
| MATERIAL DOCUMENT AND CLASSIFICATION | AISI1040 ASSN STD 1ST MATERIAL RESPONSE OR AISI1042 ASSN STD 2ND MATERIAL RESPONSE OR AISI1050 ASSN STD 3RD MATERIAL RESPONSE NUT AMS6322 ASSN STD SINGLE MATERIAL RESPONSE OR MIL-S-6049 COMP 8740 MIL SPEC SINGLE MATERIAL RESPONSE WASHER |
| SURFACE TREATMENT | CADMIUM NUT CADMIUM WASHER |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | QQ-P-416 FED SPEC SINGLE TREATMENT RESPONSE NUT QQ-P-416 TYPE2,CLASS3 FED SPEC SINGLE TREATMENT RESPONSE WASHER |
| HARDNESS RATING | 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM |
| NUT STYLE | A293 DOUBLE HEXAGON |
| WASHER OUTSIDE DIAMETER | 0.380 INCHES MAXIMUM |
| OVERALL HEIGHT | 0.223 INCHES MINIMUM AND 0.243 INCHES MAXIMUM |
| WASHER THICKNESS | 0.072 INCHES MINIMUM AND 0.087 INCHES MAXIMUM |
| WIDTH ACROSS FLATS | 0.213 INCHES MINIMUM AND 0.221 INCHES MAXIMUM |
| LOCKING FEATURE | PREVAILING TORQUE ALL METAL DESIGN |
| NUT COUNTERBORE DEPTH | 0.072 INCHES MINIMUM AND 0.087 INCHES MAXIMUM NUT |
| COUNTERBORE DIAMETER | 0.211 INCHES MINIMUM AND 0.221 INCHES MAXIMUM NUT |
| LUBRICATION | DRY FILM LUBRICANT |
| TEMP RATING | 450.0 DEG FAHRENHEIT NOMINAL |
Restrictions/Controls & Freight Information | NSN 5310-00-556-6821
| Category | Code | Description |
|---|---|---|
| Shelf-Life Code: | 0 | Nondeteriorative |
| Hazardous Material Indicator Code | N | There is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials |
| Demilitarization Code: | A | Non-Munitions List Item/ Non-Strategic List Item - Demilitarization not required. |
| Controlled Inventory Item Code: | U | UNCLASSIFIED |
| Precious Metals Indicator Code: | U | Precious metal type is unknown |
| Criticality Code: | X | The item does not have a nuclear hardened feature or any other critical feature such as tolerance, fit restriction or application. |
| Category | Code | Description |
|---|---|---|
| NMF Description | 062960 | REOSTATS/PARTS NOI |
| Less than car load rating | ||
| Less than truck load rating | P | 77.5 |
| Water commodity Code | 72D | unknown |
| Originating Activity Code | XX | |
| Air Dimension Code | A | Shipment is not a consolidation and does not exceed 72 inches in any dimension. |
| Air Commodity | H | Signal Corps supplies and equipment, including radio equipment and supplies, communications equipment and supplies, electrical equipment and supplies, etc. |
| Air Special Handling | Z | No special handling required. |
| Special Handling Code | 9 | unknonwn |
| HAZMAT | ||
| Type of Cargo | 3 | Electrostatic Sensitive Device (ESD), subject to damage caused by electrostatic discharge. (See DoD 4500.32-R, Volume 1, Appendix A, Section I for additional information on ESD devices). |
Management | NSN 5310-00-556-6821
| Category | Code | Description |
|---|---|---|
| Materiel Category and Inventory Manager | Q | Electronics Materiel (DLA/GSA Items) |
| Appropriation and Budget Activity | 2 | Stock Fund Secondary Items |
| Management Inventory Segment | 2 | NONREPARABLE ITEMS (Exclusive of Insurance and Provisioning Items). This code will be used to identify items which are not reparable. |
| Specific Group/Generic Code | 0 | Medical Materiel |
| Weapons Systems/End Item or Homogeneous Group | 00 | DLA/GSA-Managed Items that cannot be identified to a specific Army Weapons Systems/End Item |
| Accounting Requirements Code | X | Expendable item. An item of Army property coded with an ARC of ?X? in the AMDF. Expendable items require no formal accountability after issue from a stock record account. Commercial and fabricated items similar to items coded ?X? in the AMDF are considered expendable items. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DA | Department of the Army |
| Service Organization | A | U.S. Army |
| Reparability | A | Item requires special handling or condemnation procedures for specific reasons, such as precious metal content, high dollar value, critical material, or hazardous materiel. Refer to appropriate manuals or directives for specific instructions. |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |
| Category | Code | Description |
|---|---|---|
| Budget Code | 9 | General Support DIV57X4921.070:Air Force decentrally managed expense items (ERRC XB3, XF-3) with a unit cost of less than $250,000 that are requisitioned/procured at base (retail) level from DLA, GSA, Army, Navy, Depot Maintenance Service, Air Force Industrial Fund (AFMC), local manufacture and commercial vendors. |
| Materiel Management Aggregation Code | EH | SX:ELECTRONIC COMPONENTS |
| Price Validation | N | The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
|
| Fund Code | SF | Stock fund applicable to items managed for the Air Force by the respective Inventory Control Point. |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DF | Department of the Air Force |
| Service Organization | F | U.S. Air Force |
| Reparability | N | Stock Fund (except Munitions) |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |
| Category | Code | Description |
|---|---|---|
| Cognizance Codes | 9B | Navy-owned stocks of DLA material Naval Inventory Control Point, Mechanicsburg |
| Source of Supply | SMS | Defense Logistics Agency Enterprise Business Systems |
| Agency | DN | Department of the Navy |
| Service Organization | N | U.S. Navy |
| Acquisition Advice Codes | J | NOT STOCKED, CENTRALLY PROCURED # (NON-STOCKED ITEMS) IMM/Service centrally managed but not stocked item. Procurement will be initiated only after receipt of a requisition. |
| Controlled Item Code | U | UNCLASSIFIED |
| Shelf Life Code | 0 | Nondeteriorative |
| Purchasing | QTY UOM |
1 EA : Each |



