PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FC030Crowfoot Attachment,socket Wrenc

Snap-on Tools of Canada Ltd · NSN 5120-01-335-1090 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-1090 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-1090. Primary manufacturer part number: FC030.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Style Designator: OPEN END
  • Nondefinitive Spec/std Data: 2 TYPE AND 1 CLASS
  • Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Surface Treatment: CHROMIUM OVERALL
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-335-1090, is classified within Federal Supply Class 5120 (No Item Name Available) of the Hand Tools group. The primary manufacturer of record is Snap-on Tools of Canada Ltd. Government technical data includes 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 14 commercial cross-references from 11 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Cancelled.

Technical Specifications
ParameterValue
NSN5120-01-335-1090
Primary Part NumberFC030
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerSnap-on Tools of Canada Ltd
StatusCANCELLED
MaterialSTEEL OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Style DesignatorOPEN END
Nondefinitive Spec/std Data2 TYPE AND 1 CLASS
Specification/standard Data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Surface TreatmentCHROMIUM OVERALL
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size0.938 INCHES NOMINAL SINGLE END IN
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
4730-00-541-1957 INTERCHANGEABLE
Adapter,straight,tube to Hose
Cross-Reference Index
Part NumberManufacturer
FC030 Snap-on Tools of Canada Ltd (CAN)
FC030A Ge Avio Srl (ITA)
FCO30A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
81612D Apex Tool Group, Llc (USA)
28KP812 Oshkosh Corp (USA)
B107.21 The American Society of Mechanical Engineers (USA)
B107.21 TY2CL1 General Services Administration Federal Supply Service (USA)
4492861371 Lemvigh-Muller A/s (DNK)
B107.100 The American Society of Mechanical Engineers (USA)
FCO30 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
FCO30A Fincantieri S.p.a. Div Direzione Navi Militari (ITA)
5120PL1076551 Jednolity Indeks Materialowy - Uniform Material Index (POL)
28KP812 Oshkosh Defense Llc (USA)
B107.100 CAT 21 TY2CL1 General Services Administration Federal Supply Service (USA)
Related Parts
4730-00-541-1957INTERCHANGEABLE
ADAPTER,STRAIGHT,TUBE TO HOSE

Frequently Asked Questions

What is NSN 5120-01-335-1090?

NSN 5120-01-335-1090 is a Crowfoot Attachment,socket Wrenc, manufactured by Snap-on Tools of Canada Ltd, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-335-1090?

NSN 5120-01-335-1090 has 14 cross-referenced part numbers: FC030 (Snap-on Tools of Canada Ltd), FC030A (Ge Avio Srl), FCO30A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 81612D (Apex Tool Group, Llc), 28KP812 (Oshkosh Corp) and 9 more.

What NSN replaces 5120-01-335-1090?

There is 1 known substitute for 5120-01-335-1090: 4730-00-541-1957. Verify interchangeability with system specifications before substitution.

What are the specifications of FC030?

Key specifications for FC030: Material: STEEL OVERALL; Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN; Style Designator: OPEN END; Nondefinitive Spec/std Data: 2 TYPE AND 1 CLASS. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-335-1090 still in active supply?

NSN 5120-01-335-1090 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.

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