NSN 5310-01-128-6687 · NIIN 011286687 · Part number 7739644
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 5310-01-128-6687 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-128-6687. Manufacturer of record part number: 7739644.
Also searched as5310-01-128-6687 ·
5310011286687 ·
NIIN 011286687 ·
01-128-6687 ·
FSC 5310 Nuts and Washers · CAGE 19207 · 7739644
Material Document and Classification: MIL-B-11552 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
Outside Diameter: 0.993 INCHES MINIMUM AND 0.996 INCHES MAXIMUM IN
Material Thickness: 0.215 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN
Hole Diameter: 0.625 INCHES MINIMUM AND 0.628 INCHES MAXIMUM IN
Recess Angle: 60.0 DEGREES NOMINAL
1 manufacturer part number on file
Identification
NSN: 5310-01-128-6687
NIIN: 011286687
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 7739644
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Washer,recessed, cataloged under National Stock Number 5310-01-128-6687, 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 6 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. Current acquisition status: Active.
Technical Specifications
Parameter
Value
NSN
5310-01-128-6687
Primary Part Number
7739644
Item Name
Washer,recessed
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
U S Army Tank Automotive Command Amsta-Im-Mm
Status
ACTIVE
Style Designator
RECESSED
Material Document and Classification
MIL-B-11552 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
No interchangeability data on file.
Other items in FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040
5310-00-000-0040 · Item name not on file
5310-00-000-0077
NUT,PLAIN,ROUND
5310-00-000-0079
WASHER,FLAT
5310-00-000-0079
WASHER,FLAT
5310-00-000-1146
5310-00-000-1146 · Item name not on file
5310-00-000-3815
5310-00-000-3815 · Item name not on file
5310-00-000-4532
5310-00-000-4532 · Item name not on file
5310-00-000-4540
5310-00-000-4540 · Item name not on file
Frequently Asked Questions
What is NSN 5310-01-128-6687?
NSN 5310-01-128-6687 is a Washer,recessed, 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 5310-01-128-6687?
NSN 5310-01-128-6687 has 1 manufacturer part number on file: 7739644 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 7739644?
Key specifications for 7739644: Style Designator: RECESSED; Material Document and Classification: MIL-B-11552 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL; Outside Diameter: 0.993 INCHES MINIMUM AND 0.996 INCHES MAXIMUM IN; Material Thickness: 0.215 INCHES MINIMUM AND 0.220 INCHES MAXIMUM IN. 6 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-128-6687 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.