NSN 5310-01-645-9930 · NIIN 016459930 · Part number 12446495
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 5310-01-645-9930 — this item is cataloged by the U.S. Government under National Stock Number 5310-01-645-9930. Manufacturer of record part number: 12446495.
Also searched as5310-01-645-9930 ·
5310016459930 ·
NIIN 016459930 ·
01-645-9930 ·
FSC 5310 Nuts and Washers · CAGE 19207 · 12446495
Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
Style Designator: SPRING TENSION
Material Document and Classification: ASTM A684 ASSN STD ALL MATERIAL RESPONSES OVERALL
Outside Diameter: 5.392 INCHES MINIMUM AND 5.408 INCHES MAXIMUM IN
Material Thickness: 0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
Material: STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 OVERALL
Identification
NSN: 5310-01-645-9930
NIIN: 016459930
FSC: 5310 — Nuts and Washers
FSG: 53 — Hardware and Abrasives
Primary part number: 12446495
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Washer,spring Tension, cataloged under National Stock Number 5310-01-645-9930, 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 8 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
5310-01-645-9930
Primary Part Number
12446495
Item Name
Washer,spring Tension
FSC / FSG
5310 / 53 — Nuts and Washers
Manufacturer
U S Army Tank Automotive Command Amsta-Im-Mm
Status
ACTIVE
Surface Finish
125.0 MICROINCHES ALL SURFACES
Hardness Rating
44.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM
Style Designator
SPRING TENSION
Material Document and Classification
ASTM A684 ASSN STD ALL MATERIAL RESPONSES OVERALL
Outside Diameter
5.392 INCHES MINIMUM AND 5.408 INCHES MAXIMUM IN
Material Thickness
0.030 INCHES MINIMUM AND 0.034 INCHES MAXIMUM IN
Material
STEEL COMP 1074 OR STEEL COMP 1075 OR STEEL COMP 1078 OR STEEL COMP 1080 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 5310-01-645-9930?
NSN 5310-01-645-9930 is a Washer,spring Tension, 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 5310-01-645-9930?
NSN 5310-01-645-9930 has 1 manufacturer part number on file: 12446495 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 12446495?
Key specifications for 12446495: Surface Finish: 125.0 MICROINCHES ALL SURFACES; Overall Height: 0.250 INCHES MINIMUM IN; Hardness Rating: 44.0 ROCKWELL C MINIMUM AND 49.0 ROCKWELL C MAXIMUM; Style Designator: SPRING TENSION. 8 specifications are documented in the U.S. Government catalog.
Is NSN 5310-01-645-9930 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.