PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

T-37Key,socket Head Screw

Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc · NSN 5120-01-577-7988 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-577-7988 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-577-7988. Primary manufacturer part number: T-37.
Features
  • Key,socket Head Screw — FSC 5120
  • Style Designator: FIXED T-HANDLE
  • Wrenching Surface Shape: 6 POINT STAR SINGLE END EXTERNAL
  • 1 verified cross-reference
  • Primary manufacturer: Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
Applications
  • Structural fastening and assembly
  • Equipment mounting
  • Panel and housing attachment
General Description

The Key,socket Head Screw, cataloged under National Stock Number 5120-01-577-7988, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc. Government technical data includes 2 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 1 commercial cross-reference from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 7 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-577-7988
Primary Part NumberT-37
Item NameKey,socket Head Screw
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerBarrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc
StatusACTIVE
Style DesignatorFIXED T-HANDLE
Wrenching Surface Shape6 POINT STAR SINGLE END EXTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 7
5975-00-245-1732 INTERCHANGEABLE
Conduit Outlet
2510-00-334-8069T37 INTERCHANGEABLE
Vent,plug Triplex M
Clay and Bailey Manufacturing Company
5120-00-473-73245344519 INTERCHANGEABLE
Remover,bushing
U S Army Tank Automotive Command Amsta-Im-Mm
3110-00-555-522637-1B1 INTERCHANGEABLE
Bearing,ball,annular
Schatz Bearing Corporation Dba Schatz Bearing Corp
5340-00-720-632701662 INTERCHANGEABLE
Tip,furniture Leg
Defense Logistics Agency Dba Defense Supply Center Philadelphia
5340-01-448-1364T37 INTERCHANGEABLE
Bumper Tip
Bell Textron Inc
6060-01-519-7471T-37 INTERCHANGEABLE
Splicer,fiber Optics Conductor
Sumitomo Electric Lightwave Corp.
Cross-Reference Index
Part NumberManufacturer
T-37 PRIMARY Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc (USA)
Related Parts
5975-00-245-1732INTERCHANGEABLE
CONDUIT OUTLET
2510-00-334-8069INTERCHANGEABLE
VENT,PLUG TRIPLEX M
T37
5120-00-473-7324INTERCHANGEABLE
REMOVER,BUSHING
5344519
3110-00-555-5226INTERCHANGEABLE
BEARING,BALL,ANNULAR
37-1B1
5340-00-720-6327INTERCHANGEABLE
TIP,FURNITURE LEG
01662
5340-01-448-1364INTERCHANGEABLE
BUMPER TIP
T37
6060-01-519-7471INTERCHANGEABLE
SPLICER,FIBER OPTICS CONDUCTOR
T-37

Frequently Asked Questions

What is NSN 5120-01-577-7988?

NSN 5120-01-577-7988 is a Key,socket Head Screw, manufactured by Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-577-7988?

NSN 5120-01-577-7988 has 1 cross-referenced part number: T-37 (Barrett Firearms Manufacturing, Inc. Dba Barrett Firearms Manufacturing Inc).

What NSN replaces 5120-01-577-7988?

There are 7 known substitutes for 5120-01-577-7988: 5975-00-245-1732, 2510-00-334-8069, 5120-00-473-7324 and 4 more. Verify interchangeability with system specifications before substitution.

What are the specifications of T-37?

Key specifications for T-37: Overall Length: 6.000 INCHES NOMINAL IN; Special Features: TORX SIZE T-15; GREEN HANDLE; Style Designator: FIXED T-HANDLE; Wrenching Surface Shape: 6 POINT STAR SINGLE END EXTERNAL. 4 total characteristics are documented in the Federal Logistics Information System.

Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
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