PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5131-25Ring,retaining

Rotor Clip Company, Inc. · NSN 5325-00-663-2400 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-663-2400 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-663-2400. Primary manufacturer part number: 5131-25.
Features
  • Ring,retaining — FSC 5325
  • Ring Style: E BOWED
  • End Play Takeup: 0.024 INCHES MAXIMUM IN
  • Material: STEEL
  • Material Document and Classification: FED STD NO. 66,FS1066 TO FS1090 FED STD SINGLE MATERIAL RESPONSE
  • Usage Design: EXTERNAL
  • Casehardening Indicator: NOT CASEHARDENED
  • Material Hardness Rating: 66.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-663-2400, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rotor Clip Company, Inc.. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-663-2400
Primary Part Number5131-25
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerRotor Clip Company, Inc.
StatusCANCELLED
Ring StyleE BOWED
End Play Takeup0.024 INCHES MAXIMUM IN
MaterialSTEEL
Material Document and ClassificationFED STD NO. 66,FS1066 TO FS1090 FED STD SINGLE MATERIAL RESPONSE
Usage DesignEXTERNAL
Casehardening IndicatorNOT CASEHARDENED
Material Hardness Rating66.5 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Inside Diameter0.204 INCHES MINIMUM AND 0.208 INCHES MAXIMUM IN
Major Thickness0.023 INCHES MINIMUM AND 0.027 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 4
4010-00-283-09158386985 INTERCHANGEABLE
Chain Assembly,single Leg
U S Army Tank Automotive Command Amsta-Im-Mm
5325-01-067-0369533300-0037 INTERCHANGEABLE
Ring,retaining
Parker-Hannifin Corporation Dba Pneutronics Div Hydraulic Valve Division
4730-01-169-9833103475-01 INTERCHANGEABLE
Packing Nut
Pall Corporation Fluid Dynamics Division Dba Pall Corporation Fluid Dynamics
4820-01-701-1078500431 INTERCHANGEABLE
Valve,butterfly
Tri-Tec Manufacturing Llc
Cross-Reference Index
Part NumberManufacturer
5131-25 Rotor Clip Company, Inc. (USA)
N1501-25AS Seeger Inc Anderton-United Products Div (USA)
1034751 Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road) (USA)
5004-31 New Haven Mfg Corp (USA)
1034751 Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div (USA)
MS16634-25 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
N1501-25AS Rotor Clip Company, Inc. (USA)
5131-25 Truarc Company Llc Dba Waldes Truarc (USA)
N1501-25AS Truarc Company Llc Dba Waldes Truarc (USA)
N1501-25 Seeger Inc Anderton-United Products Div (USA)
05004-0031 New Haven Mfg Corp (USA)
N1501-25CD Seeger Inc Anderton-United Products Div (USA)
Related Parts
4010-00-283-0915INTERCHANGEABLE
CHAIN ASSEMBLY,SINGLE LEG
8386985
5325-01-067-0369INTERCHANGEABLE
RING,RETAINING
533300-0037
4730-01-169-9833INTERCHANGEABLE
PACKING NUT
103475-01
4820-01-701-1078INTERCHANGEABLE
VALVE,BUTTERFLY
500431

Frequently Asked Questions

What is NSN 5325-00-663-2400?

NSN 5325-00-663-2400 is a Ring,retaining, manufactured by Rotor Clip Company, Inc., classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-663-2400?

NSN 5325-00-663-2400 has 12 cross-referenced part numbers: 5131-25 (Rotor Clip Company, Inc.), N1501-25AS (Seeger Inc Anderton-United Products Div), 1034751 (Honeywell International Inc. Dba Honeywell International Div Aerospace - Tempe (west Warner Road)), 5004-31 (New Haven Mfg Corp), 1034751 (Allied-Signal Inc Dba Allied-Signal Aerospace Co Electrodynamics Div) and 7 more.

What NSN replaces 5325-00-663-2400?

There are 4 known substitutes for 5325-00-663-2400: 4010-00-283-0915, 5325-01-067-0369, 4730-01-169-9833 and 1 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5131-25?

Key specifications for 5131-25: Ring Style: E BOWED; End Play Takeup: 0.024 INCHES MAXIMUM IN; Material: STEEL; Material Document and Classification: FED STD NO. 66,FS1066 TO FS1090 FED STD SINGLE MATERIAL RESPONSE. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-663-2400 still in active supply?

NSN 5325-00-663-2400 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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