PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

252958Key,machine

Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace · NSN 5315-00-437-9457 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-437-9457 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-437-9457. Primary manufacturer part number: 252958.
Features
  • Key,machine — FSC 5315
  • First Flat Length: 0.062 INCHES NOMINAL IN
  • Key Chamfer Angle: 45.0 DEGREES NOMINAL
  • Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Key Chamfer Length: 0.025 INCHES NOMINAL IN
  • Starting Edge Shape: CHAMFERED
  • Second Flat Length: 0.186 INCHES NOMINAL IN
  • Style Designator: STEPPED
Applications
  • Applications requiring Steel Comp 1095 Overall construction
General Description

The Key,machine, cataloged under National Stock Number 5315-00-437-9457, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace. Government technical data includes 11 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-00-437-9457
Primary Part Number252958
Item NameKey,machine
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerSargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace
StatusACTIVE
First Flat Length0.062 INCHES NOMINAL IN
Key Chamfer Angle45.0 DEGREES NOMINAL
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Key Chamfer Length0.025 INCHES NOMINAL IN
Starting Edge ShapeCHAMFERED
Second Flat Length0.186 INCHES NOMINAL IN
Style DesignatorSTEPPED
Flat Height0.083 INCHES NOMINAL IN
MaterialSTEEL COMP 1095 OVERALL
Surface TreatmentOXIDE OVERALL
Surface Treatment Document and ClassificationMIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
3110-00-120-4465608VBF53 INTERCHANGEABLE
Bearing,ball,thrust
Rbc Bearings Incorporated Div West Trenton Division
Cross-Reference Index
Part NumberManufacturer
252958 Kidde-Fenwal, Llc (USA)
252958 PRIMARY Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace (USA)
Related Parts
3110-00-120-4465INTERCHANGEABLE
BEARING,BALL,THRUST
608VBF53

Frequently Asked Questions

What is NSN 5315-00-437-9457?

NSN 5315-00-437-9457 is a Key,machine, manufactured by Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-00-437-9457?

NSN 5315-00-437-9457 has 2 cross-referenced part numbers: 252958 (Kidde-Fenwal, Llc), 252958 (Sargent Aerospace & Defense, Llc Dba Sargent Controls & Aerospace Div Sargent Controls & Aerospace).

What NSN replaces 5315-00-437-9457?

There is 1 known substitute for 5315-00-437-9457: 3110-00-120-4465. Verify interchangeability with system specifications before substitution.

What are the specifications of 252958?

Key specifications for 252958: Overall Width: 0.365 INCHES NOMINAL IN; First Flat Length: 0.062 INCHES NOMINAL IN; Key Chamfer Angle: 45.0 DEGREES NOMINAL; Overall Length: 0.311 INCHES NOMINAL IN. 14 total characteristics are documented in the Federal Logistics Information System.

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