PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FCO18ACrowfoot Attachment,socket Wrenc

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-335-1152 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-335-1152 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-335-1152. Primary manufacturer part number: FCO18A.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Wrenching Surface Size: 0.562 INCHES NOMINAL SINGLE END IN
  • Style Designator: OPEN END
  • Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Shape: OVAL SINGLE END INTERNAL
  • Material: STEEL OVERALL
Applications
  • Applications requiring Steel Overall construction
General Description

The Crowfoot Attachment,socket Wrenc, cataloged under National Stock Number 5120-01-335-1152, 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 9 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 12 commercial cross-references from 7 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
NSN5120-01-335-1152
Primary Part NumberFCO18A
Item NameCrowfoot Attachment,socket Wrenc
FSC / FSG5120 / 51 — No Item Name Available
ManufacturerIdsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc
StatusCANCELLED
Drive End ShapeSQUARE SINGLE END INTERNAL
Wrenching Surface Size0.562 INCHES NOMINAL SINGLE END IN
Style DesignatorOPEN END
Specification/standard Data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
MaterialSTEEL OVERALL
Surface TreatmentCHROMIUM OVERALL
Nondefinitive Spec/std Data2 TYPE AND 1 CLASS
Lifecycle & Compliance
Acquisition StatusCANCELLED
HAZMATNo
Verified Substitutes 1
5120-01-131-4465 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
FCO18A Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
5120PL0897728 Jednolity Indeks Materialowy - Uniform Material Index (POL)
FC018A Ge Avio Srl (ITA)
B107.100 The American Society of Mechanical Engineers (USA)
B107.21 TY2CL1 General Services Administration Federal Supply Service (USA)
ZLW0112 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
B107.100 CAT 21 TY2CL1 General Services Administration Federal Supply Service (USA)
FCO18 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
11A7000191-2 Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army (USA)
FC018A Fincantieri S.p.a. Div Direzione Navi Militari (ITA)
B107.21 The American Society of Mechanical Engineers (USA)
ZHVY0125 Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
Related Parts
5120-01-131-4465INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-01-335-1152?

NSN 5120-01-335-1152 is a Crowfoot Attachment,socket Wrenc, manufactured by Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc, classified under FSC 5120 (No Item Name Available). Status: cancelled.

What are the part numbers for NSN 5120-01-335-1152?

NSN 5120-01-335-1152 has 12 cross-referenced part numbers: FCO18A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), 5120PL0897728 (Jednolity Indeks Materialowy - Uniform Material Index), FC018A (Ge Avio Srl), B107.100 (The American Society of Mechanical Engineers), B107.21 TY2CL1 (General Services Administration Federal Supply Service) and 7 more.

What NSN replaces 5120-01-335-1152?

There is 1 known substitute for 5120-01-335-1152: 5120-01-131-4465. Verify interchangeability with system specifications before substitution.

What are the specifications of FCO18A?

Key specifications for FCO18A: Drive End Shape: SQUARE SINGLE END INTERNAL; Wrenching Surface Size: 0.562 INCHES NOMINAL SINGLE END IN; Style Designator: OPEN END; Specification/standard Data: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD. 10 total characteristics are documented in the Federal Logistics Information System.

Is NSN 5120-01-335-1152 still in active supply?

NSN 5120-01-335-1152 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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