Width Across Flats: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
Length: 2.650 INCHES NOMINAL IN
Style Designator: INTERNALLY THREADED FULL LENGTH
Cross-Sectional Shape: ROUND
Identification
NSN: 5340-00-452-2576
NIIN: 004522576
FSC: 5340 — Hardware, Commercial
FSG: 53 — Hardware and Abrasives
General Description
The Standoff,threaded,spacing, cataloged under National Stock Number 5340-00-452-2576, is classified within Federal Supply Class 5340 (Hardware, Commercial) of the Hardware and Abrasives group. Government technical data includes 4 specifications, cited from the U.S. Government catalog. 3 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 8 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active. Unit of issue: EA.
Technical Specifications
Parameter
Value
NSN
5340-00-452-2576
Item Name
Standoff,threaded,spacing
FSC / FSG
5340 / 53 — Hardware, Commercial
Status
ACTIVE
Width Across Flats
0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN
Length
2.650 INCHES NOMINAL IN
Style Designator
INTERNALLY THREADED FULL LENGTH
Cross-Sectional Shape
ROUND
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
Possible hazard — SDS may be required (DLA HMIC P)
Criticality Code
X
Unit of Issue
EA
⇄Related Items8
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-00-452-2706POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)
5310-00-452-7894POSSIBLE MATCH
WASHER,KEY
Possible match (shared part number)
5310-00-468-8487POSSIBLE MATCH
NUT,PLAIN,BARREL
Possible match (shared part number)
5310-00-469-0013POSSIBLE MATCH
WASHER,KEY
Possible match (shared part number)
5310-00-469-0218POSSIBLE MATCH
WASHER,SPRING TENSION
Possible match (shared part number)
5310-00-471-2938POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)
5310-00-471-7525POSSIBLE MATCH
WASHER,SHOULDERED AND RECESSED
Possible match (shared part number)
5310-00-471-8006POSSIBLE MATCH
NUT,PLAIN,CASTELLATED,HEXAGON
Possible match (shared part number)
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
F269741
3/9Design control — primary reference
British Aerospace (military Aircraft & Aerostructures)
F269741
C/1Advisory reference — outside the item-of-supply concept
Bae Systems (operations) Limited
5310-99-603
6/9Informative reference only
U.S. Government activity
Related Parts
5310-00-452-2706POSSIBLE MATCH
WASHER,FLAT
5310-00-452-7894POSSIBLE MATCH
WASHER,KEY
5310-00-468-8487POSSIBLE MATCH
NUT,PLAIN,BARREL
5310-00-469-0013POSSIBLE MATCH
WASHER,KEY
5310-00-469-0218POSSIBLE MATCH
WASHER,SPRING TENSION
5310-00-471-2938POSSIBLE MATCH
WASHER,FLAT
5310-00-471-7525POSSIBLE MATCH
WASHER,SHOULDERED AND RECESSED
5310-00-471-8006POSSIBLE MATCH
NUT,PLAIN,CASTELLATED,HEXAGON
Frequently Asked Questions
What is NSN 5340-00-452-2576?
NSN 5340-00-452-2576 is a Standoff,threaded,spacing, classified under FSC 5340, Hardware, Commercial. Status: active.
What NSN replaces 5340-00-452-2576?
8 possible matches (shared part number, not a government interchangeability claim): 5310-00-452-2706, 5310-00-452-7894, 5310-00-468-8487. Verify interchangeability with system specifications before substitution.
What are the specifications of 5340-00-452-2576?
Key specifications for 5340-00-452-2576: Width Across Flats: 0.553 INCHES MINIMUM AND 0.564 INCHES MAXIMUM IN; Length: 2.650 INCHES NOMINAL IN; Style Designator: INTERNALLY THREADED FULL LENGTH; Cross-Sectional Shape: ROUND. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5340-00-452-2576 hazardous material?
Possible hazard — SDS may be required (DLA HMIC P). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.