PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

MIL-DTL-21248Ring,retaining

Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M · NSN 5325-00-804-7310 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-804-7310 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-804-7310. Primary manufacturer part number: MIL-DTL-21248.
Features
  • Ring,retaining — FSC 5325
  • Cross-Sectional Shape Style: RECTANGULAR
  • Material: STEEL
  • Surface Treatment: PHOSPHATE
  • Material Document and Classification: FED-STD,NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
  • Ring Style: INTERNAL
  • Usage Design: INTERNAL
  • Casehardening Indicator: NOT CASEHARDENED
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-804-7310, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 18 commercial cross-references from 12 manufacturers, enabling identification through both NSN and commercial part number lookups. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-804-7310
Primary Part NumberMIL-DTL-21248
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMilitary Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
StatusCANCELLED
Cross-Sectional Shape StyleRECTANGULAR
MaterialSTEEL
Surface TreatmentPHOSPHATE
Material Document and ClassificationFED-STD,NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE
Ring StyleINTERNAL
Usage DesignINTERNAL
Casehardening IndicatorNOT CASEHARDENED
Major Thickness0.042 INCHES NOMINAL IN
Outside Diameter0.971 INCHES NOMINAL IN
Material Hardness Rating66.0 ROCKWELL SUPERFICIAL 30-N MINIMUM AND 71.0 ROCKWELL SUPERFICIAL 30-N MAXIMUM
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
4710-00-076-1727 INTERCHANGEABLE
Pipe,metallic
4710-00-822-584074665A INTERCHANGEABLE
Pipe,metallic
Air Products & Chemicals, Inc
4710-00-841-9756 INTERCHANGEABLE
Pipe,metallic
5961-00-842-4029 INTERCHANGEABLE
Semiconductor Device,diode
4710-00-847-2035 INTERCHANGEABLE
Pipe,metallic
4710-00-847-2036 INTERCHANGEABLE
Pipe,metallic
4710-00-847-2038 INTERCHANGEABLE
Pipe,metallic
4710-00-847-2039 INTERCHANGEABLE
Pipe,metallic
4710-00-847-2869 INTERCHANGEABLE
Pipe,metallic
4710-00-849-7840 INTERCHANGEABLE
Pipe,metallic
Cross-Reference Index
Part NumberManufacturer
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
N5000-87-S-PP Rotor Clip Company, Inc. (USA)
0740668 General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels (CHE)
5368008047310 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
N5000-87-S-PP Truarc Company Llc Dba Waldes Truarc (USA)
NAS669-87P National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
N5000-X87-S-PP Truarc Company Llc Dba Waldes Truarc (USA)
N5000-87PP Truarc Company Llc Dba Waldes Truarc (USA)
A10668 Fnh Uk Ltd (GBR)
MS16625-3087 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
5365008047310 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
10-1506-100 ITEM 16 L3 Technologies, Inc. (USA)
3000-X87-ST-PA Truarc Co Llc (USA)
710668 Fnh Uk Ltd (GBR)
N1300-87 Seeger Inc Anderton-United Products Div (USA)
MS16625-30087 Zf Industrieantriebe Witten Gmbh (DEU)
N5000-87PP Rotor Clip Company, Inc. (USA)
N5000-X87-S-PP Rotor Clip Company, Inc. (USA)
Related Parts
4710-00-076-1727INTERCHANGEABLE
PIPE,METALLIC
4710-00-822-5840INTERCHANGEABLE
PIPE,METALLIC
74665A
4710-00-841-9756INTERCHANGEABLE
PIPE,METALLIC
5961-00-842-4029INTERCHANGEABLE
SEMICONDUCTOR DEVICE,DIODE
4710-00-847-2035INTERCHANGEABLE
PIPE,METALLIC
4710-00-847-2036INTERCHANGEABLE
PIPE,METALLIC
4710-00-847-2038INTERCHANGEABLE
PIPE,METALLIC
4710-00-847-2039INTERCHANGEABLE
PIPE,METALLIC
4710-00-847-2869INTERCHANGEABLE
PIPE,METALLIC
4710-00-849-7840INTERCHANGEABLE
PIPE,METALLIC
4710-00-849-7841INTERCHANGEABLE
PIPE,METALLIC
4710-00-849-9829INTERCHANGEABLE
PIPE,METALLIC

Frequently Asked Questions

What is NSN 5325-00-804-7310?

NSN 5325-00-804-7310 is a Ring,retaining, manufactured by Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-804-7310?

NSN 5325-00-804-7310 has 18 cross-referenced part numbers: MIL-DTL-21248 (Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M), N5000-87-S-PP (Rotor Clip Company, Inc.), 0740668 (General Dynamics European, Land-Systems-Mowag Gmbh Dba Gdels), 5368008047310 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), N5000-87-S-PP (Truarc Company Llc Dba Waldes Truarc) and 13 more.

What NSN replaces 5325-00-804-7310?

There are 12 known substitutes for 5325-00-804-7310: 4710-00-076-1727, 4710-00-822-5840, 4710-00-841-9756 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of MIL-DTL-21248?

Key specifications for MIL-DTL-21248: Cross-Sectional Shape Style: RECTANGULAR; Material: STEEL; Surface Treatment: PHOSPHATE; Material Document and Classification: FED-STD,NO. 1066 THRU 1090 FED STD SINGLE MATERIAL RESPONSE. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-804-7310 still in active supply?

NSN 5325-00-804-7310 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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