PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

3737-3Key,machine

Kearfott Corp Div Kearfott Corporation · NSN 5315-00-021-4017 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-021-4017 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-021-4017. Primary manufacturer part number: 3737-3.
Features
  • Key,machine — FSC 5315
  • Starting Edge Shape: STRAIGHT
  • Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
  • Surface Treatment: OXIDE OVERALL
  • Surface Treatment Document and Classification: MIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
  • Material: STEEL COMP 1095 OVERALL
  • Style Designator: PLAIN
  • 2 verified cross-references
Applications
  • Applications requiring Steel Comp 1095 Overall construction
General Description

The Key,machine, cataloged under National Stock Number 5315-00-021-4017, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Kearfott Corp Div Kearfott Corporation. Government technical data includes 6 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. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-00-021-4017
Primary Part Number3737-3
Item NameKey,machine
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerKearfott Corp Div Kearfott Corporation
StatusACTIVE
Starting Edge ShapeSTRAIGHT
Material Document and ClassificationAISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL
Surface TreatmentOXIDE OVERALL
Surface Treatment Document and ClassificationMIL-C-13924,CL2 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
MaterialSTEEL COMP 1095 OVERALL
Style DesignatorPLAIN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
5325-00-612-909437373 INTERCHANGEABLE
Ring,retaining
Parker Hannifin Corp Dba Pneutronics
5310-00-737-110600254 INTERCHANGEABLE
Nut,plain,hexagon
Defense Logistics Agency Dba Defense Supply Center Philadelphia
4730-01-095-725737373 INTERCHANGEABLE
Plug,flight Control
Eaton Aerospace Llc Dba Eaton Aerospace Jackson
2040-01-107-1183 INTERCHANGEABLE
Rack and Cable
2840-01-158-596137373 INTERCHANGEABLE
Housing,gearbox,turbine Engine
Williams International Co., L.l.c.
2030-01-245-0511 INTERCHANGEABLE
Rack,cable
Cross-Reference Index
Part NumberManufacturer
3737-3 PRIMARY Kearfott Corp Div Kearfott Corporation (USA)
3737-3 Fl Aerospace Corp Janitrol Aero Div/general Design (USA)
Related Parts
5325-00-612-9094INTERCHANGEABLE
RING,RETAINING
37373
5310-00-737-1106INTERCHANGEABLE
NUT,PLAIN,HEXAGON
00254
4730-01-095-7257INTERCHANGEABLE
PLUG,FLIGHT CONTROL
37373
2040-01-107-1183INTERCHANGEABLE
RACK AND CABLE
2840-01-158-5961INTERCHANGEABLE
HOUSING,GEARBOX,TURBINE ENGINE
37373
2030-01-245-0511INTERCHANGEABLE
RACK,CABLE

Frequently Asked Questions

What is NSN 5315-00-021-4017?

NSN 5315-00-021-4017 is a Key,machine, manufactured by Kearfott Corp Div Kearfott Corporation, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-00-021-4017?

NSN 5315-00-021-4017 has 2 cross-referenced part numbers: 3737-3 (Kearfott Corp Div Kearfott Corporation), 3737-3 (Fl Aerospace Corp Janitrol Aero Div/general Design).

What NSN replaces 5315-00-021-4017?

There are 6 known substitutes for 5315-00-021-4017: 5325-00-612-9094, 5310-00-737-1106, 4730-01-095-7257 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 3737-3?

Key specifications for 3737-3: Overall Height: 0.124 INCHES MINIMUM AND 0.126 INCHES MAXIMUM IN; Overall Length: 0.813 INCHES NOMINAL IN; Starting Edge Shape: STRAIGHT; Material Document and Classification: AISI ASSN STD SINGLE MATERIAL RESPONSE OVERALL. 10 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com