PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

172-12Pin,straight,headed

Ontic Engineering & Manufacturing, Inc Dba Ontic Us · NSN 5315-00-166-6431 · FSC 5315 · No Item Name Available
Verified by PartsTable
NSN 5315-00-166-6431 — this item is cataloged by the U.S. Government under National Stock Number 5315-00-166-6431. Primary manufacturer part number: 172-12.
Features
  • Pin,straight,headed — FSC 5315
  • Head Style: FLAT FILLISTER
  • Under Head Length: 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
  • Material Document and Classification: AN-QQ-S-689 2230 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
  • Pin Head Diameter: 0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
  • Style Designator: STRAIGHT
  • Material: STEEL COMP 2330 OVERALL
  • Hardness Rating: 35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
Applications
  • Applications requiring Steel Comp 2330 Overall construction
General Description

The Pin,straight,headed, cataloged under National Stock Number 5315-00-166-6431, is classified within Federal Supply Class 5315 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Ontic Engineering & Manufacturing, Inc Dba Ontic Us. Government technical data includes 10 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. 12 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5315-00-166-6431
Primary Part Number172-12
Item NamePin,straight,headed
FSC / FSG5315 / 53 — No Item Name Available
ManufacturerOntic Engineering & Manufacturing, Inc Dba Ontic Us
StatusACTIVE
Head StyleFLAT FILLISTER
Under Head Length0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN
Material Document and ClassificationAN-QQ-S-689 2230 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
Pin Head Diameter0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN
Style DesignatorSTRAIGHT
MaterialSTEEL COMP 2330 OVERALL
Hardness Rating35.0 ROCKWELL C MINIMUM AND 40.0 ROCKWELL C MAXIMUM OVERALL
Chamfer Length0.037 INCHES MINIMUM AND 0.057 INCHES MAXIMUM IN
Diameter0.12450 INCHES MINIMUM AND 0.12550 INCHES MAXIMUM IN
Pin Chamfer Angle14.0 DEGREES MINIMUM AND 16.0 DEGREES MAXIMUM
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 12
5930-00-056-7626172-1-2 INTERCHANGEABLE
Switch,push
Korry Electronics Co
5342-00-298-9481 INTERCHANGEABLE
Mount,resilient,weapon System
5340-00-313-68771721-2 INTERCHANGEABLE
Lock,special
Adams Rite Aerospace, Inc
5950-01-024-1937905510-1 INTERCHANGEABLE
Transformer,power
Northrop Grumman Systems Corporation Dba Northrop Grumman Systems Corp
5841-01-099-876317212 INTERCHANGEABLE
Circuit,hybrid Prea
Astronautics Corporation of America
2540-01-116-35751-7-21-2 INTERCHANGEABLE
Heater,vehicular,compartment
Celtech Corporation Div Use CAGE 65552 for All Orders
5355-01-242-185717212 INTERCHANGEABLE
Knob
G.s. Blodgett, Llc Div Blodgett
5945-01-260-7227172-12 INTERCHANGEABLE
Relay,electromagnetic
Teledyne Defense Electronics, Llc Dba Teledyne Relays Div Https://www.teledyne.com/what-We-Do/
5310-01-400-2173SKB-714 ITEM X180 INTERCHANGEABLE
Washer,flat
Coffin Turbo Pump Inc
5360-01-414-967717212 INTERCHANGEABLE
Spring,helical,extension
Lockheed Martin Corp
Cross-Reference Index
Part NumberManufacturer
172-12 PRIMARY Ontic Engineering & Manufacturing, Inc Dba Ontic Us (USA)
172-12 Donallco Inc (USA)
Related Parts
5930-00-056-7626INTERCHANGEABLE
SWITCH,PUSH
172-1-2
5342-00-298-9481INTERCHANGEABLE
MOUNT,RESILIENT,WEAPON SYSTEM
5340-00-313-6877INTERCHANGEABLE
LOCK,SPECIAL
1721-2
5950-01-024-1937INTERCHANGEABLE
TRANSFORMER,POWER
905510-1
5841-01-099-8763INTERCHANGEABLE
CIRCUIT,HYBRID PREA
17212
2540-01-116-3575INTERCHANGEABLE
HEATER,VEHICULAR,COMPARTMENT
1-7-21-2
5355-01-242-1857INTERCHANGEABLE
KNOB
17212
5945-01-260-7227INTERCHANGEABLE
RELAY,ELECTROMAGNETIC
172-12
5310-01-400-2173INTERCHANGEABLE
WASHER,FLAT
SKB-714 ITEM X180
5360-01-414-9677INTERCHANGEABLE
SPRING,HELICAL,EXTENSION
17212
4730-01-538-1058INTERCHANGEABLE
CLAMP,HOSE
17212
5340-01-571-5197INTERCHANGEABLE
PLUG,PROTECTIVE,DUST AND MOISTUR

Frequently Asked Questions

What is NSN 5315-00-166-6431?

NSN 5315-00-166-6431 is a Pin,straight,headed, manufactured by Ontic Engineering & Manufacturing, Inc Dba Ontic Us, classified under FSC 5315 (No Item Name Available). Status: active.

What are the part numbers for NSN 5315-00-166-6431?

NSN 5315-00-166-6431 has 2 cross-referenced part numbers: 172-12 (Ontic Engineering & Manufacturing, Inc Dba Ontic Us), 172-12 (Donallco Inc).

What NSN replaces 5315-00-166-6431?

There are 12 known substitutes for 5315-00-166-6431: 5930-00-056-7626, 5342-00-298-9481, 5340-00-313-6877 and 9 more. Verify interchangeability with system specifications before substitution.

What are the specifications of 172-12?

Key specifications for 172-12: Head Style: FLAT FILLISTER; Under Head Length: 0.360 INCHES MINIMUM AND 0.370 INCHES MAXIMUM IN; Material Document and Classification: AN-QQ-S-689 2230 FED SPEC SINGLE MATERIAL RESPONSE OVERALL; Pin Head Diameter: 0.1873 INCHES MINIMUM AND 0.1875 INCHES MAXIMUM IN. 10 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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