NSN 5310-01-644-2386 · NIIN 016442386 · Part number 12543055-008
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 5310 — Nuts and Washers · FSG 53 — Hardware and Abrasives · CAGE 19207
Government record, cited
NSN 5310-01-644-2386 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-644-2386. Manufacturer of record part number: 12543055-008.
Also searched as5310-01-644-2386 ·
5310016442386 ·
NIIN 016442386 ·
01-644-2386 ·
FSC 5310 Nuts and Washers · CAGE 19207 · 12543055-008 · 12543055
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Washer,flat, cataloged under National Stock Number 5310-01-644-2386, is classified within Federal Supply Class 5310 (Nuts and Washers) of the Hardware and Abrasives group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 7 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 1 additional reference document (drawings, advisory and superseded references) is recorded in the U.S. Government catalog. 5 items share a part number with this NSN in the catalog (possible match — not a government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
5310-01-644-2386
Primary Part Number
12543055-008
Item Name
Washer,flat
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
U S Army Tank Automotive Command Amsta-Im-Mm
Status
ACTIVE
Overall Diameter
0.640 INCHES MAXIMUM IN
Cross-Sectional Shape Style
BLANK RECTANGULAR
Peripheral Shape Style
ROUND
Material
STEEL OVERALL
Center Hole Shape Style
ROUND
Hole Diameter
0.276 INCHES MINIMUM IN
Thickness
0.065 INCHES NOMINAL 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 Items5
Each row states its source: a government interchangeability/replacement code, or a possible match on a shared part number.
5310-01-644-445712543055-005POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-644-686612543055-006POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-644-688412543055-007POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-710-271712543055-016POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
5310-01-727-431412543055-009POSSIBLE MATCH
WASHER,FLAT
Possible match (shared part number)U S Army Tank Automotive Command Amsta-Im-Mm
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
Reference documents
Reference
Meaning
12543055
D/9Drawing number reference only
U S Army Tank Automotive Command Amsta-Im-Mm
Related Parts
5310-01-644-4457POSSIBLE MATCH
WASHER,FLAT
12543055-005
5310-01-644-6866POSSIBLE MATCH
WASHER,FLAT
12543055-006
5310-01-644-6884POSSIBLE MATCH
WASHER,FLAT
12543055-007
5310-01-710-2717POSSIBLE MATCH
WASHER,FLAT
12543055-016
5310-01-727-4314POSSIBLE MATCH
WASHER,FLAT
12543055-009
Frequently Asked Questions
What is NSN 5310-01-644-2386?
NSN 5310-01-644-2386 is a Washer,flat, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5310, Nuts and Washers. Status: active.
What part numbers are listed for NSN 5310-01-644-2386?
NSN 5310-01-644-2386 has 1 manufacturer part number on file: 12543055-008 (U S Army Tank Automotive Command Amsta-Im-Mm).
What NSN replaces 5310-01-644-2386?
5 possible matches (shared part number, not a government interchangeability claim): 5310-01-644-4457, 5310-01-644-6866, 5310-01-644-6884. Verify interchangeability with system specifications before substitution.
What are the specifications of 12543055-008?
Key specifications for 12543055-008: Overall Diameter: 0.640 INCHES MAXIMUM IN; Cross-Sectional Shape Style: BLANK RECTANGULAR; Peripheral Shape Style: ROUND; Part Name Assigned by Controlling Agency: WASHER PLAIN. 7 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-644-2386 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.