Product Details | RETAINING RING

5325-00-205-4756 A resilient metal item, circular or nearly circular, which is designed to be inserted into an internal or external groove and retained by its own spring action, or it may have external prongs or projections designed to be inserted into a hole and retained by spring action of the prongs which grip by imbedding into the material. For items having internal prongs which perform the same function, see PUSH ON NUT. It is used to keep and/or lock a part(s) in position, as a ball bearing on a shaft or in a housing. See also CLIP, RETAINING and PIN, LOCK. Excludes RING, CONNECTING, ROUND.

Part Alternates: MS166254077, MS16625-4077, N130077AS, N1300-77AS, N500077H, N5000-77H, N5000X77H, N5000-X77-H, 2895512, 28955-12, 3000X77SS2, 3000-X77-SS2, 4111714077, 411171-4077, 5325-00-205-4756, 00-205-4756, 5325002054756, 002054756

Hardware and Abrasives | Fastening Devices

Supply Group (FSG) NSN Assign. NIIN
53 01 JAN 1963 00-205-4756

Drawings & Photos | NSN 5325-00-205-4756


Demand History | NSN 5325-00-205-4756

Part Number Request Date QTY Origin
MS166254077 2025-01-31 1 United States
MS166254077 2025-01-31 5 Japan
5325-00-205-4756 2015-10-291 910 DIBBS
MS166254077 2008-01-28 200 United States

Cross Reference | NSN 5325-00-205-4756

Part Number Cage Code Manufacturer
28955-12 11599 TRIUMPH ENGINE CONTROL SYSTEMS, LLC
3000-X77-SS2 97464 TRUARC CO LLC
411171-4077 96214 RAYTHEON COMPANY DBA RAYTHEON
MS16625-4077 96906 MILITARY STANDARDS PROMULGATED BY MILITARY DEPARTMENTS
N1300-77AS 54963 SEEGER INC ANDERTON-UNITED PRODUCTS DIV
N5000-77H 79136 TRUARC COMPANY LLC DBA WALDES TRUARC
N5000-X77-H 79136 TRUARC COMPANY LLC DBA WALDES TRUARC

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Technical Data | NSN 5325-00-205-4756

Characteristic Specifications
MATERIAL STEEL, AMS 5520
SURFACE TREATMENT PASSIVATED, QQ-P-35
STRENGTH RATING NOT RATED
MATERIAL HARDNESS RATING 63.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 69.5 ROCKWELL SUPERFICIAL 30-N MAXIMUM
CASEHARDENING INDICATOR NOT CASEHARDENED
RING STYLE A37 INTERNAL
OUTSIDE DIAMETER 0.854 INCHES MINIMUM AND 0.869 INCHES MAXIMUM
CROSS-SECTIONAL SHAPE STYLE D4 RECTANGULAR
MAJOR THICKNESS 0.040 INCHES MINIMUM AND 0.044 INCHES MAXIMUM
USAGE DESIGN INTERNAL
MANUFACTURERS CODE 96906
DEFINITIVE GOVERNMENT SPEC/STD REFERENCE MS16625-4077

Restrictions/Controls & Freight Information | NSN 5325-00-205-4756

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:UPrecious 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
No Freight Information