PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

F321Socket,socket Wrench

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-350-0995 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-350-0995 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-350-0995. Primary manufacturer part number: F321.
Features
  • Socket,socket Wrench — FSC 5120
  • Material: STEEL OVERALL
  • Features Provided: MANUAL TOOL
  • Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL
  • Surface Treatment: CHROMIUM OVERALL
  • Style Designator: INTERNAL-INTERNAL
  • Nondefinitive Spec/std Data: 1 TYPE AND 1 CLASS AND A STYLE
  • Specification/standard Data: 0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Applications
  • Applications requiring Steel Overall construction
General Description

The Socket,socket Wrench, cataloged under National Stock Number 5120-01-350-0995, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc. Government technical data includes 10 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 5 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-350-0995
Primary Part NumberF321
Item NameSocket,socket Wrench
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusACTIVE
MaterialSTEEL OVERALL
Features ProvidedMANUAL TOOL
Wrenching Surface Shape12 POINT SINGLE END INTERNAL
Surface TreatmentCHROMIUM OVERALL
Style DesignatorINTERNAL-INTERNAL
Nondefinitive Spec/std Data1 TYPE AND 1 CLASS AND A STYLE
Specification/standard Data0U583-SAE AS954 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size1.000 INCHES NOMINAL SINGLE END IN
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 6
3110-00-120-4287160532 INTERCHANGEABLE
Roller,bearing
Regal Beloit America, Inc. Dba Rollway Bearing
3110-00-155-6488220MF INTERCHANGEABLE
Bearing,ball,annular
Skf Usa Inc.
4510-00-403-0442 INTERCHANGEABLE
Lavatory
5977-00-878-33631776682 INTERCHANGEABLE
Ring Assembly,electrical Contact
Honeywell International Inc. Dba Honeywell International
5920-01-286-7187 INTERCHANGEABLE
Fuseholder,block
4130-01-690-2796F321 INTERCHANGEABLE
Filter Element,air Conditioning
Dri-Eaz Products Inc
Cross-Reference Index
Part NumberManufacturer
F321 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
AS954 Sae International Dba Sae International (USA)
AS954 TY1CL1STA General Services Administration Federal Supply Service (USA)
5120PL1074110 Jednolity Indeks Materialowy - Uniform Material Index (POL)
AS954 Society of Automotive Engineers Inc (USA)
Related Parts
3110-00-120-4287INTERCHANGEABLE
ROLLER,BEARING
160532
3110-00-155-6488INTERCHANGEABLE
BEARING,BALL,ANNULAR
220MF
4510-00-403-0442INTERCHANGEABLE
LAVATORY
5977-00-878-3363INTERCHANGEABLE
RING ASSEMBLY,ELECTRICAL CONTACT
1776682
5920-01-286-7187INTERCHANGEABLE
FUSEHOLDER,BLOCK
4130-01-690-2796INTERCHANGEABLE
FILTER ELEMENT,AIR CONDITIONING
F321

Frequently Asked Questions

What is NSN 5120-01-350-0995?

NSN 5120-01-350-0995 is a Socket,socket Wrench, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: active.

What are the part numbers for NSN 5120-01-350-0995?

NSN 5120-01-350-0995 has 5 cross-referenced part numbers: F321 (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), AS954 (Sae International Dba Sae International), AS954 TY1CL1STA (General Services Administration Federal Supply Service), 5120PL1074110 (Jednolity Indeks Materialowy - Uniform Material Index), AS954 (Society of Automotive Engineers Inc).

What NSN replaces 5120-01-350-0995?

There are 6 known substitutes for 5120-01-350-0995: 3110-00-120-4287, 3110-00-155-6488, 4510-00-403-0442 and 3 more. Verify interchangeability with system specifications before substitution.

What are the specifications of F321?

Key specifications for F321: Material: STEEL OVERALL; Features Provided: MANUAL TOOL; Wrenching Surface Shape: 12 POINT SINGLE END INTERNAL; Surface Treatment: CHROMIUM OVERALL. 11 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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