Overall Diameter: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
Cross-Sectional Shape Style: RECTANGULAR
Peripheral Shape Style: ROUND
Material: COPPER ALLOY OVERALL
Center Hole Shape Style: ROUND
Hole Diameter: 0.516 INCHES MINIMUM AND 0.547 INCHES MAXIMUM IN
Thickness: 0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
Identification
NSN: 5310-00-990-7449
NIIN: 009907449
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
General Description
The Washer,flat, cataloged under National Stock Number 5310-00-990-7449, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. Government technical data includes 7 specifications, cited from the U.S. Government catalog. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 4 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-00-990-7449
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Status
ACTIVE
Overall Diameter
0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN
Cross-Sectional Shape Style
RECTANGULAR
Peripheral Shape Style
ROUND
Material
COPPER ALLOY OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
0.516 INCHES MINIMUM AND 0.547 INCHES MAXIMUM IN
Thickness
0.078 INCHES MINIMUM AND 0.109 INCHES MAXIMUM IN
Lifecycle & Compliance
Acquisition Status
ACTIVE
DEMIL Code
DEMIL A — No Demilitarization Required
Hazard
No hazard code in the DLA record (HMIC N)
Criticality Code
X
⇄Related Items4
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
1560-01-161-717122696POSSIBLE MATCH
COVER,VENT
Possible match (shared part number)Eaton Corporation Dba Airframe Div Fuel & Motion Control Systems
5965-01-415-086673B2619POSSIBLE MATCH
EARPHONE
Possible match (shared part number)Gentex Corp
2530-01-495-741451.0802.6900POSSIBLE MATCH
BRACKET SUPPORT BRAKE CYLINDER
Possible match (shared part number)Terex American Crane Corp
4720-01-641-644622696POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
Possible match (shared part number)Ritchie Engineering Co Inc
Cross-Reference Index
No manufacturer part numbers on file in the U.S. Government catalog.
Reference documents
Reference
Meaning
22696
3/9Design control — primary reference
Bowen Tools Inc a Big Three Industry
Related Parts
1560-01-161-7171POSSIBLE MATCH
COVER,VENT
22696
5965-01-415-0866POSSIBLE MATCH
EARPHONE
73B2619
2530-01-495-7414POSSIBLE MATCH
BRACKET SUPPORT BRAKE CYLINDER
51.0802.6900
4720-01-641-6446POSSIBLE MATCH
HOSE ASSEMBLY,NONMETALLIC
22696
Frequently Asked Questions
What is NSN 5310-00-990-7449?
NSN 5310-00-990-7449 is a Washer,flat, classified under FSC 5310, Nuts and Washers. Status: active.
What NSN replaces 5310-00-990-7449?
4 possible matches (shared part number, not a government interchangeability claim): 1560-01-161-7171, 5965-01-415-0866, 2530-01-495-7414. Verify interchangeability with system specifications before substitution.
What are the specifications of 5310-00-990-7449?
Key specifications for 5310-00-990-7449: Overall Diameter: 0.984 INCHES MINIMUM AND 1.016 INCHES MAXIMUM IN; Cross-Sectional Shape Style: RECTANGULAR; Peripheral Shape Style: ROUND; Material: COPPER ALLOY OVERALL. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-00-990-7449 hazardous material?
No hazard code in the DLA record (HMIC N). 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.