PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

S144-35Ring,retaining

Miltope Corporation · NSN 5325-00-514-2957 · FSC 5325 · No Item Name Available
Verified by PartsTable
NSN 5325-00-514-2957 — this item is cataloged by the U.S. Government under National Stock Number 5325-00-514-2957. Primary manufacturer part number: S144-35.
Features
  • Ring,retaining — FSC 5325
  • Major Thickness: 0.015 INCHES NOMINAL IN
  • Outside Diameter: 0.280 INCHES NOMINAL IN
  • Material: STEEL
  • Material Document and Classification: FED STD NO. 66,AISI C1066 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
  • End Play Takeup: 0.021 INCHES MAXIMUM IN
  • Ring Style: INTERNAL BOWED
  • Material Hardness Rating: 86.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 88.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
Applications
  • Applications requiring Steel construction
General Description

The Ring,retaining, cataloged under National Stock Number 5325-00-514-2957, is classified within Federal Supply Class 5325 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Miltope Corporation. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 6 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5325-00-514-2957
Primary Part NumberS144-35
Item NameRing,retaining
FSC / FSG5325 / 53 — No Item Name Available
ManufacturerMiltope Corporation
StatusCANCELLED
Major Thickness0.015 INCHES NOMINAL IN
Outside Diameter0.280 INCHES NOMINAL IN
MaterialSTEEL
Material Document and ClassificationFED STD NO. 66,AISI C1066 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE
End Play Takeup0.021 INCHES MAXIMUM IN
Ring StyleINTERNAL BOWED
Material Hardness Rating86.0 ROCKWELL SUPERFICIAL 15-N MINIMUM AND 88.0 ROCKWELL SUPERFICIAL 15-N MAXIMUM
Cross-Sectional Shape StyleRECTANGULAR
Usage DesignINTERNAL
Strength RatingERR-060
Casehardening IndicatorNOT CASEHARDENED
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 6
2825-00-076-3833500125 INTERCHANGEABLE
Nozzle Block,turbin
Curtiss-Wright Electro-Mechanical Corporation Dba Curtiss-Wright Steam and Air Solutions Div Steam and Air Solutions
5330-00-297-643843-909 INTERCHANGEABLE
Seal,plain Encased
Federal-Mogul Corp Government Sales Dept
4730-00-541-47525001-25 INTERCHANGEABLE
Adapter,straight,pipe to Tube
Raytheon Company Div Rmd Strategic
2530-00-574-91238A7184 INTERCHANGEABLE
Ratchet Segment
Napco International Llc Dba Napco International Inc
4820-01-499-8089500125 INTERCHANGEABLE
Valve,ball
S & G Enterprises Inc
5330-01-674-5961500125 INTERCHANGEABLE
Seal,plain Encased
Meggitt North Hollywood Inc
Cross-Reference Index
Part NumberManufacturer
N1301-25CD Rotor Clip Company, Inc. (USA)
N1301-25 Seeger Inc Anderton-United Products Div (USA)
N5001-25 Rotor Clip Company, Inc. (USA)
S144-35 PRIMARY Miltope Corporation (USA)
N5001-25 Truarc Company Llc Dba Waldes Truarc (USA)
N1301-25AS Rotor Clip Company, Inc. (USA)
4913334-73 Lockheed Martin Corp Dba Lockheed Martin Div Mst - Eagan (USA)
5001-25 Rotor Clip Company, Inc. (USA)
N1301-25 Rotor Clip Company, Inc. (USA)
N1301-25CD Seeger Inc Anderton-United Products Div (USA)
S144-35 PRIMARY Psi-Peripheral Support (USA)
N1301-25CD Truarc Company Llc Dba Waldes Truarc (USA)
N1301-25AS Seeger Inc Anderton-United Products Div (USA)
5001-25 Truarc Company Llc Dba Waldes Truarc (USA)
Related Parts
2825-00-076-3833INTERCHANGEABLE
NOZZLE BLOCK,TURBIN
500125
5330-00-297-6438INTERCHANGEABLE
SEAL,PLAIN ENCASED
43-909
4730-00-541-4752INTERCHANGEABLE
ADAPTER,STRAIGHT,PIPE TO TUBE
5001-25
2530-00-574-9123INTERCHANGEABLE
RATCHET SEGMENT
8A7184
4820-01-499-8089INTERCHANGEABLE
VALVE,BALL
500125
5330-01-674-5961INTERCHANGEABLE
SEAL,PLAIN ENCASED
500125

Frequently Asked Questions

What is NSN 5325-00-514-2957?

NSN 5325-00-514-2957 is a Ring,retaining, manufactured by Miltope Corporation, classified under FSC 5325 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5325-00-514-2957?

NSN 5325-00-514-2957 has 14 cross-referenced part numbers: N1301-25CD (Rotor Clip Company, Inc.), N1301-25 (Seeger Inc Anderton-United Products Div), N5001-25 (Rotor Clip Company, Inc.), S144-35 (Miltope Corporation), N5001-25 (Truarc Company Llc Dba Waldes Truarc) and 9 more.

What NSN replaces 5325-00-514-2957?

There are 6 known substitutes for 5325-00-514-2957: 2825-00-076-3833, 5330-00-297-6438, 4730-00-541-4752 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of S144-35?

Key specifications for S144-35: Major Thickness: 0.015 INCHES NOMINAL IN; Outside Diameter: 0.280 INCHES NOMINAL IN; Material: STEEL; Material Document and Classification: FED STD NO. 66,AISI C1066 THRU C1090 FED STD SINGLE MATERIAL RESPONSE OR SAE 1070 THRU 1090 ASSN STD SINGLE MATERIAL RESPONSE. 11 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5325-00-514-2957 still in active supply?

NSN 5325-00-514-2957 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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