PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

5100-156-S-MDRing,retaining

Rotor Clip Company, Inc. · NSN 5325-00-803-7304 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-803-7304 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-803-7304. Primary manufacturer part number: 5100-156-S-MD.
Features
  • Ring,retaining — FSC 5325
  • Usage Design: EXTERNAL
  • Major Thickness: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
  • Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
  • Material: STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090
  • Material Document and Classification: FED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE
  • Surface Treatment: CADMIUM AND CHROMATE
  • Ring Style: EXTERNAL
Applications
  • Applications requiring Steel Comp 1066 or Steel Comp 1069 or Steel Comp 1070 or Steel Comp 1072 or Steel Comp 1074 or Steel Comp 1075 or Steel Comp 1078 or Steel Comp 1080 or Steel Comp 1084 or Steel Comp 1086 or Steel Comp 1090 construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-803-7304, 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 25 commercial cross-references from 14 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
NSN5325-00-803-7304
Primary Part Number5100-156-S-MD
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerRotor Clip Company, Inc.
StatusCANCELLED
Usage DesignEXTERNAL
Major Thickness0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN
Material Hardness Rating47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM
MaterialSTEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090
Material Document and ClassificationFED STD 66 AISI 1066 OR 1069 OR 1070 OR 1072 OR 1074 OR 1075 OR 1078 OR 1080 OR 1084 OR 1086 OR 1090 FED STD SINGLE MATERIAL RESPONSE
Surface TreatmentCADMIUM AND CHROMATE
Ring StyleEXTERNAL
Inside Diameter1.426 INCHES MINIMUM AND 1.459 INCHES MAXIMUM IN
Cross-Sectional Shape StyleRECTANGULAR
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 12
3040-00-003-05415100156 INTERCHANGEABLE
Gearshaft,spur
Hamilton Sundstrand Corporation
5998-00-170-6721 INTERCHANGEABLE
Electronic Components Assembly
5120-00-204-053021003 INTERCHANGEABLE
Face,hammer,inserted
Garland Manufacturing Co Dba Garland Manufacturing Co Div Uhmw Polyethylene Division
5325-00-276-42487431654-118 INTERCHANGEABLE
Grommet,nonmetallic
Westinghouse Electric Corp
5325-00-282-1653 INTERCHANGEABLE
Ring,retaining
2805-00-391-321021003 INTERCHANGEABLE
Ring,piston
Briggs and Stratton Corp
5960-00-521-022121003 INTERCHANGEABLE
Retainer,electron,t
Leica Inc Surveying and Photogrammetry Systems Div
5325-00-597-51762100-3 INTERCHANGEABLE
Insert,screw Thread
Nafco Usa Llc
5950-00-787-7044 INTERCHANGEABLE
Coil,radio Frequency
5940-00-983-6114 INTERCHANGEABLE
Terminal Board
Cross-Reference Index
Part NumberManufacturer
5100-156-S-MD Rotor Clip Company, Inc. (USA)
3100-156 Zf Industrieantriebe Witten Gmbh (DEU)
5365008037304 E.c.a Etablissement Centrald'approvisionnement Des Forces Armee
NAS670-156 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
21003 Zf Industrieantriebe Witten Gmbh (DEU)
TER156SCP Honeywell Intl Inc Defense Avionics Systems (USA)
TER156SCP Honeywell Intl Inc Defense Avionics Systems Former Bendix Navigation and Control Systems (USA)
5100-156MD Rotor Clip Company, Inc. (USA)
MILR21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
T15509 Deere & Co (USA)
NAS51-156 National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use (USA)
MS16624-1156 Military Standards Promulgated by Military Departments Under Authority of Defense Standardization Manual 4120 3-M
MIL-DTL-21248 Military Specifications Promulgated by Military Departments/agencies Under Authority of Defense Standardization Manual 4120 3-M
9053986 Us Army Aviation and Missile Command (USA)
MS16624-5100-15 6 Zf Industrieantriebe Witten Gmbh (DEU)
5100-156MD Truarc Company Llc Dba Waldes Truarc (USA)
5100-156-S-MD Truarc Company Llc Dba Waldes Truarc (USA)
3100-156-ST-CD Truarc Co Llc (USA)
5100-156 Zf Industrieantriebe Witten Gmbh (DEU)
2186D42 Curtiss-Wright Controls, Inc. Div Actuation Division (USA)
Related Parts
3040-00-003-0541INTERCHANGEABLE
GEARSHAFT,SPUR
5100156
5998-00-170-6721INTERCHANGEABLE
ELECTRONIC COMPONENTS ASSEMBLY
5120-00-204-0530INTERCHANGEABLE
FACE,HAMMER,INSERTED
21003
5325-00-276-4248INTERCHANGEABLE
GROMMET,NONMETALLIC
7431654-118
5325-00-282-1653INTERCHANGEABLE
RING,RETAINING
2805-00-391-3210INTERCHANGEABLE
RING,PISTON
21003
5960-00-521-0221INTERCHANGEABLE
RETAINER,ELECTRON,T
21003
5325-00-597-5176INTERCHANGEABLE
INSERT,SCREW THREAD
2100-3
5950-00-787-7044INTERCHANGEABLE
COIL,RADIO FREQUENCY
5940-00-983-6114INTERCHANGEABLE
TERMINAL BOARD
6685-00-994-1027INTERCHANGEABLE
THERMOMETER,SELF-INDICATING
65C
4130-01-017-3319INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
456295

Frequently Asked Questions

What is NSN 5325-00-803-7304?

NSN 5325-00-803-7304 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 5325-00-803-7304?

NSN 5325-00-803-7304 has 25 cross-referenced part numbers: 5100-156-S-MD (Rotor Clip Company, Inc.), 3100-156 (Zf Industrieantriebe Witten Gmbh), 5365008037304 (E.c.a Etablissement Centrald'approvisionnement Des Forces Armee), NAS670-156 (National Aerospace Standards Committee Aerospace Industries Association of America Inc Not for Rfq or Solicitation Use), 21003 (Zf Industrieantriebe Witten Gmbh) and 20 more.

What NSN replaces 5325-00-803-7304?

There are 12 known substitutes for 5325-00-803-7304: 3040-00-003-0541, 5998-00-170-6721, 5120-00-204-0530 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 5100-156-S-MD?

Key specifications for 5100-156-S-MD: Usage Design: EXTERNAL; Major Thickness: 0.059 INCHES MINIMUM AND 0.065 INCHES MAXIMUM IN; Material Hardness Rating: 47.0 ROCKWELL C MINIMUM AND 52.0 ROCKWELL C MAXIMUM; Material: STEEL COMP 1066 OR STEEL COMP 1069 OR STEEL COMP 1070 OR STEEL COMP 1072 OR STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OR STEEL COMP 1084 OR STEEL COMP 1086 OR STEEL COMP 1090. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-803-7304 still in active supply?

NSN 5325-00-803-7304 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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