PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

375089Nut,self-Locking,extended Washer

Rtx Corporation Div Pratt & Whitney · NSN 5310-00-685-1744 · FSC 5310 · No Item Name Available
Verified by PartsTable
NSN 5310-00-685-1744 — this item is cataloged by the U.S. Government under National Stock Number 5310-00-685-1744. Primary manufacturer part number: 375089.
Features
  • Nut,self-Locking,extended Washer — FSC 5310
  • 5 verified cross-references
  • Primary manufacturer: Rtx Corporation Div Pratt & Whitney
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Nut,self-Locking,extended Washer, cataloged under National Stock Number 5310-00-685-1744, is classified within Federal Supply Class 5310 (No Item Name Available) of the Hardware and Abrasives group. The primary manufacturer of record is Rtx Corporation Div Pratt & Whitney. This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Catalog Facts
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 — No Item Name Available (FSG 53)
ManufacturersBristol Industries, Llc (CAGE 27238); Harvard Industries Inc (CAGE 72962); Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (CAGE 77445); Rtx Corporation Div Pratt & Whitney (CAGE 52661); Sps Technologies, Llc Dba PB Fasteners (CAGE 56878)
Technical Specifications
ParameterValue
NSN5310-00-685-1744
Primary Part Number375089
Item NameNut,self-Locking,extended Washer
FSC / FSG5310 / 53 — No Item Name Available
ManufacturerRtx Corporation Div Pratt & Whitney
StatusACTIVE
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 4
6240-00-577-8455 INTERCHANGEABLE
Lamp,incandescent
5306-00-660-2091375089 INTERCHANGEABLE
Bolt,externally Relieved Body
Honeywell International Inc. Dba Honeywell International Div Aerospace - Phoenix
5310-00-964-6781119FW428 INTERCHANGEABLE
Nut,self-Locking,extended Washer
Sps Technologies, Llc Dba PB Fasteners
5310-01-472-910126-6096 INTERCHANGEABLE
Washer,key
Air Force United States Department of the Dba Tinker Afb Oc Alc Dsp Div Department of the Air Force
Cross-Reference Index
Part NumberManufacturer
BH00445-4 Bristol Industries, Llc (USA)
266096 Harvard Industries Inc (USA)
375089 Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney (USA)
375089 PRIMARY Rtx Corporation Div Pratt & Whitney (USA)
119FW428 PRIMARY Sps Technologies, Llc Dba PB Fasteners (USA)
Related Parts
6240-00-577-8455INTERCHANGEABLE
LAMP,INCANDESCENT
5306-00-660-2091INTERCHANGEABLE
BOLT,EXTERNALLY RELIEVED BODY
375089
5310-00-964-6781INTERCHANGEABLE
NUT,SELF-LOCKING,EXTENDED WASHER
119FW428
5310-01-472-9101INTERCHANGEABLE
WASHER,KEY
26-6096

Frequently Asked Questions

What is NSN 5310-00-685-1744?

NSN 5310-00-685-1744 is a Nut,self-Locking,extended Washer, manufactured by Rtx Corporation Div Pratt & Whitney, classified under FSC 5310 (No Item Name Available). Status: active.

What are the part numbers for NSN 5310-00-685-1744?

NSN 5310-00-685-1744 has 5 cross-referenced part numbers: BH00445-4 (Bristol Industries, Llc), 266096 (Harvard Industries Inc), 375089 (Rtx Corporation Dba Pratt & Whitney Div Pratt &whitney), 375089 (Rtx Corporation Div Pratt & Whitney), 119FW428 (Sps Technologies, Llc Dba PB Fasteners).

What NSN replaces 5310-00-685-1744?

There are 4 known substitutes for 5310-00-685-1744: 6240-00-577-8455, 5306-00-660-2091, 5310-00-964-6781 and 1 more. Verify interchangeability with system specifications before substitution.

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