NSN 5120-01-048-8640 · NIIN 010488640 · Part number 12257561
U S Army Tank Automotive Command Amsta-Im-Mm · FSC 5120 — Hand Tools, Nonedged, Nonpowered · FSG 51 — Hand Tools · CAGE 19207
Government record, cited
NSN 5120-01-048-8640 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-048-8640. Manufacturer of record part number: 12257561.
Also searched as5120-01-048-8640 ·
5120010488640 ·
NIIN 010488640 ·
01-048-8640 ·
FSC 5120 Hand Tools, Nonedged, Nonpowered · CAGE 19207 · 12257561
Nearby stock numbers← 5120-01-048-8603 Compressor, Valve Spring
·
5120-01-048-8663 →
Features
Socket,wrench,face Spanner — FSC 5120
Opening Diameter: 2.880 INCHES NOMINAL IN
Style Designator: LUG
Lug Length: 0.220 INCHES NOMINAL IN
Material: STEEL COMP 4140 OVERALL
1 manufacturer part number on file
Manufacturer of record: U S Army Tank Automotive Command Amsta-Im-Mm
Identification
NSN: 5120-01-048-8640
NIIN: 010488640
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
FSG: 51 — Hand Tools
Primary part number: 12257561
Manufacturer: U S Army Tank Automotive Command Amsta-Im-Mm
General Description
The Socket,wrench,face Spanner, cataloged under National Stock Number 5120-01-048-8640, is classified within Federal Supply Class 5120 (Hand Tools, Nonedged, Nonpowered) of the Hand Tools group. The manufacturer of record is U S Army Tank Automotive Command Amsta-Im-Mm. Government technical data includes 4 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.
U S Army Tank Automotive Command Amsta-Im-Mm (USA)
No interchangeability data on file.
Other items in FSC 5120 — Hand Tools, Nonedged, Nonpowered
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5120-00-001-2642
ADAPTER,TORQUE WRENCH
5120-00-001-2644
ADAPTER,TORQUE WRENCH
5120-00-001-2650
INSERTER,SEAL
5120-00-001-2651
5120-00-001-2651 · Item name not on file
5120-00-001-2652
INSTALLING TOOL,SHAFT
5120-00-001-2653
REMOVER,PREFORMED PACKING
5120-00-001-2654
REMOVER,PREFORMED PACKING
5120-00-001-2655
SOCKET,WRENCH,FACE SPANNER
Frequently Asked Questions
What is NSN 5120-01-048-8640?
NSN 5120-01-048-8640 is a Socket,wrench,face Spanner, manufactured by U S Army Tank Automotive Command Amsta-Im-Mm, classified under FSC 5120, Hand Tools, Nonedged, Nonpowered. Status: active.
What part numbers are listed for NSN 5120-01-048-8640?
NSN 5120-01-048-8640 has 1 manufacturer part number on file: 12257561 (U S Army Tank Automotive Command Amsta-Im-Mm).
What are the specifications of 12257561?
Key specifications for 12257561: Opening Diameter: 2.880 INCHES NOMINAL IN; Style Designator: LUG; Overall Length: 2.000 INCHES NOMINAL IN; Lug Length: 0.220 INCHES NOMINAL IN. 4 specifications are documented in the U.S. Government catalog.
Is NSN 5120-01-048-8640 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.