Product Details | CLOSE TOLERANCE SCREW

5305-01-308-0171 A SCREW, MACHINE or SCREW, CAP, SOCKET HEAD whose unthreaded portion is of specified grip length, plated or unplated, and is machined to a tolerance of one thousandth (0.001 IN.) (0.025 mm) or less of a specific diameter for items (1.000 IN.) (25 mm) or less in diameter. Items over (1.000 IN.) (25 mm) in diameter shall have a tolerance of fifteen ten thousandths (0.0015 IN.) (0.038 mm) or less. The nominal major diameter of the threads shall be at least one thousandth (0.001 IN.) (0.025 mm) below the minimum shank diameter, but not below the minimum major diameter for applicable class of fit, as shown in the Screw Thread Standards, FED STD H28 and/or other nationally recognized standards. The head is designed to be held or driven with an inserted driver. It is not designed for rotation by the thumb and fingers. A locking feature may be incorporated in the design of the head or threads.

Part Alternates: BM33024V36M, BM33024V3-6M, HT271A36M, HT271A3-6M, HT813736ASM, HT8137-3-6ASM, ST3M430V36ASM, ST3M430V3-6ASM, 11017936ASM, 110179-3-6ASM, 5305-01-308-0171, 01-308-0171, 5305013080171, 013080171

Hardware and Abrasives | Screws

Supply Group (FSG) NSN Assign. NIIN
53 21 SEP 1989 01-308-0171

Drawings & Photos | NSN 5305-01-308-0171


Demand History | NSN 5305-01-308-0171

Part Number Request Date QTY Origin
110179-3-6ASM 2025-12-337 100 DIBBS
HT271A3-6M 2025-12-337 100 DIBBS
HT8137-3-6ASM 2025-12-337 100 DIBBS
ST3M430V3-6ASM 2025-12-337 100 DIBBS
110179-3-6ASM 2025-07-209 100 DIBBS
HT271A3-6M 2025-07-209 100 DIBBS
HT8137-3-6ASM 2025-07-209 100 DIBBS
ST3M430V3-6ASM 2025-07-209 100 DIBBS
110179-3-6ASM 2023-06-158 100 DIBBS
HT271A3-6M 2023-06-158 100 DIBBS
HT8137-3-6ASM 2023-06-158 100 DIBBS
ST3M430V3-6ASM 2023-06-158 100 DIBBS
110179-3-6ASM 2023-03-78 100 DIBBS
HT271A3-6M 2023-03-78 100 DIBBS
HT8137-3-6ASM 2023-03-78 100 DIBBS
ST3M430V3-6ASM 2023-03-78 100 DIBBS
110179-3-6ASM 2023-01-04 45 DIBBS
HT271A3-6M 2023-01-04 45 DIBBS
HT8137-3-6ASM 2023-01-04 45 DIBBS
ST3M430V3-6ASM 2023-01-04 45 DIBBS
110179-3-6ASM 2022-11-324 50 DIBBS
HT271A3-6M 2022-11-324 50 DIBBS
HT8137-3-6ASM 2022-11-324 50 DIBBS
ST3M430V3-6ASM 2022-11-324 50 DIBBS
110179-3-6ASM 2022-01-25 150 DIBBS
110179-3-6ASM 2022-01-25 100 DIBBS
HT271A3-6M 2022-01-25 150 DIBBS
HT271A3-6M 2022-01-25 100 DIBBS
HT8137-3-6ASM 2022-01-25 150 DIBBS
HT8137-3-6ASM 2022-01-25 100 DIBBS
ST3M430V3-6ASM 2022-01-25 150 DIBBS
ST3M430V3-6ASM 2022-01-25 100 DIBBS
110179-3-6ASM 2022-01-05 50 DIBBS
HT271A3-6M 2022-01-05 50 DIBBS
HT8137-3-6ASM 2022-01-05 50 DIBBS
ST3M430V3-6ASM 2022-01-05 50 DIBBS
110179-3-6ASM 2020-10-299 60 DIBBS
110179-3-6ASM 2020-10-299 48 DIBBS
HT271A3-6M 2020-10-299 60 DIBBS
HT271A3-6M 2020-10-299 48 DIBBS
HT8137-3-6ASM 2020-10-299 60 DIBBS
HT8137-3-6ASM 2020-10-299 48 DIBBS
ST3M430V3-6ASM 2020-10-299 60 DIBBS
ST3M430V3-6ASM 2020-10-299 48 DIBBS
110179-3-6ASM 2020-09-258 48 DIBBS
HT271A3-6M 2020-09-258 48 DIBBS
HT8137-3-6ASM 2020-09-258 48 DIBBS
ST3M430V3-6ASM 2020-09-258 48 DIBBS
110179-3-6ASM 2020-06-166 16 DIBBS
HT271A3-6M 2020-06-166 16 DIBBS
HT8137-3-6ASM 2020-06-166 16 DIBBS
ST3M430V3-6ASM 2020-06-166 16 DIBBS
110179-3-6ASM 2020-06-154 20 DIBBS
HT271A3-6M 2020-06-154 20 DIBBS
HT8137-3-6ASM 2020-06-154 20 DIBBS
ST3M430V3-6ASM 2020-06-154 20 DIBBS
110179-3-6ASM 2019-08-241 22 DIBBS
HT271A3-6M 2019-08-241 22 DIBBS
HT8137-3-6ASM 2019-08-241 22 DIBBS
ST3M430V3-6ASM 2019-08-241 22 DIBBS
110179-3-6ASM 2019-07-196 30 DIBBS
HT271A3-6M 2019-07-196 30 DIBBS
HT8137-3-6ASM 2019-07-196 30 DIBBS
ST3M430V3-6ASM 2019-07-196 30 DIBBS
110179-3-6ASM 2019-07-188 25 DIBBS
HT271A3-6M 2019-07-188 25 DIBBS
HT8137-3-6ASM 2019-07-188 25 DIBBS
ST3M430V3-6ASM 2019-07-188 25 DIBBS
110179-3-6ASM 2019-07-182 13 DIBBS
HT271A3-6M 2019-07-182 13 DIBBS
HT8137-3-6ASM 2019-07-182 13 DIBBS
ST3M430V3-6ASM 2019-07-182 13 DIBBS
5305-01-308-0171 2018-12-351 20 DIBBS
5305-01-308-0171 2018-11-309 20 DIBBS
5305-01-308-0171 2016-12-354 40 DIBBS
5305-01-308-0171 2014-04-112 150 DIBBS
5305-01-308-0171 2014-03-76 59 DIBBS
5305-01-308-0171 2013-06-154 30 DIBBS

Cross Reference | NSN 5305-01-308-0171

Part Number Cage Code Manufacturer
110179-3-6ASM 80539 SPS TECHNOLOGIES, LLC DBA AEROSPACE FASTENERS GROUP
110179-3-6ASM K5673 SPS TECHNOLOGIES LTD TJ BROOKS DIVISION
BM33024V3-6M 17446 HUCK INTERNATIONAL, INC. DBA ALCOA FASTENING SYSTEMS
BM33024V3-6M 97928 HUCK INTL INC
HT271A3-6M 73197 HI-SHEAR CORPORATION
HT271A3-6M L4528 LISI AEROSPACE CANADA CORP
HT8137-3-6ASM 06950 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
HT8137-3-6ASM 92215 ALCOA GLOBAL FASTENERS, INC. DBA ALCOA FASTENING SYSTEMS
ST3M430V3-6ASM 76301 BOEING COMPANY, THE DBA BOEING

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Technical Data | NSN 5305-01-308-0171

Characteristic Specifications
THREAD SERIES DESIGNATOR UNJF
NOMINAL THREAD DIAMETER 0.190 INCHES
THREAD QUANTITY PER INCH 32
THREAD CLASS 3A
THREAD DIRECTION RIGHT-HAND
THREAD LENGTH 0.380 INCHES MINIMUM AND 0.447 INCHES MAXIMUM
FASTENER LENGTH 0.765 INCHES MINIMUM AND 0.812 INCHES MAXIMUM
MATERIAL TITANIUM ALLOY UNS R56400 OVERALL
MATERIAL DOCUMENT AND CLASSIFICATION AMS 4967 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
HEAD STYLE C51 FLAT COUNTERSUNK UNDERCUT
HEAD DIAMETER 0.376 INCHES MINIMUM AND 0.381 INCHES MAXIMUM
HEAD HEIGHT 0.044 INCHES MINIMUM AND 0.046 INCHES MAXIMUM
COUNTERSINK ANGLE 100.0 DEGREES NOMINAL
INTERNAL DRIVE STYLE D9 HIGH-TORQUE
GRIP LENGTH 0.365 INCHES MINIMUM AND 0.385 INCHES MAXIMUM
GRIP DIAMETER 0.1890 INCHES MINIMUM AND 0.1895 INCHES MAXIMUM
SURFACE FINISH 32.0 MICROINCHES GRIP 32.0 MICROINCHES THREADS
FEATURES PROVIDED O RING AND DRY FILM LUBRICANT AND CETYL ALCOHOL LUBRICANT

Restrictions/Controls & Freight Information | NSN 5305-01-308-0171

Category Code Description
Shelf-Life Code:0Nondeteriorative
Hazardous Material Indicator CodeNThere is no data in the HMIS and the NSN is in an FSC not generally suspected of containing hazardous materials
Demilitarization Code:ANon-Munitions List Item/ Non-Strategic List Item - Demilitarization not required.
Controlled Inventory Item Code:UUNCLASSIFIED
Precious Metals Indicator Code:AItem does not contain precious metal
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 136500 METAL NOI/METAL ALLOYS NOI
Less than car load rating
Less than truck load rating W Rating Variable
Water commodity Code 713 unknown
Originating Activity Code KH Defense Industrial Supply Center
Philadelphia, PA 19111
Air Dimension Code A Shipment is not a consolidation and does not exceed 72 inches in any dimension.
Air Commodity B Construction materials: Includes paint and related materials, prefabricated building, wood products, metal and composition materials and their products, commercial hardware and miscellaneous items, cement, asphalt, building maintenance materials.
Air Special Handling Z No special handling required.
Special Handling Code 9 unknonwn
HAZMAT
Type of Cargo Z No special type of cargo code applicable

Management | NSN 5305-01-308-0171

Category Code Description
Budget Code9 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.
Price ValidationN The current standard price in Catalog Management Data (CMD) has not analyzed or coded for LP/LM.
  • The price has not been analyzed or reviewed for accuracy.
  • ZOP or Standard price challenges are permissible, but must be supported with adequate justification. However, if coded for Local Purchase (LP) or Fabrication/Manufacture as indicated with an (LM) Acquisition Advice Code of ?L? or?F?,the case must be evaluated locally where purchased or fabricated.
Fund CodeSFStock fund applicable to items managed for the Air Force by the respective Inventory Control Point.
Materiel Management Aggregation CodeSXSX:AF SICA RESIDUAL MMAC-OC-ALC
Source of SupplySMSDefense Logistics Agency
Enterprise Business Systems
AgencyDFDepartment of the Air Force
Service OrganizationFU.S. Air Force
ReparabilityNStock Fund (except Munitions)
Acquisition Advice CodesJNOT 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 CodeUUNCLASSIFIED
Shelf Life Code0Nondeteriorative
Purchasing QTY
UOM
1
EA : Each