PartsTable TECHNICAL DATA SHEET
JULY 2026Technical Data Sheet

FC44ACrowfoot Attachment,socket Wrenc

Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc · NSN 5120-01-661-6760 · FSC 5120 · No Item Name Available
Verified by PartsTable
NSN 5120-01-661-6760 — this item is cataloged by the U.S. Government under National Stock Number 5120-01-661-6760. Primary manufacturer part number: FC44A.
Features
  • Crowfoot Attachment,socket Wrenc — FSC 5120
  • Drive End Shape: SQUARE SINGLE END INTERNAL
  • Material: STEEL OVERALL
  • Drive Surface Size: 0.375 INCHES NOMINAL SINGLE END IN
  • Wrenching Surface Size: 1.375 INCHES NOMINAL SINGLE END IN
  • Surface Treatment: CHROMIUM OVERALL
  • Style Designator: OPEN END
  • 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 5120-01-661-6760, 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 7 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 6 commercial cross-references from 4 manufacturers, enabling identification through both NSN and commercial part number lookups. 1 verified substitute exists in the FLIS interchangeability database. Current acquisition status: Active.

Technical Specifications
ParameterValue
NSN5120-01-661-6760
Primary Part NumberFC44A
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
StatusACTIVE
Drive End ShapeSQUARE SINGLE END INTERNAL
MaterialSTEEL OVERALL
Drive Surface Size0.375 INCHES NOMINAL SINGLE END IN
Wrenching Surface Size1.375 INCHES NOMINAL SINGLE END IN
Surface TreatmentCHROMIUM OVERALL
Style DesignatorOPEN END
Wrenching Surface ShapeOVAL SINGLE END INTERNAL
Lifecycle & Compliance
Acquisition StatusACTIVE
HAZMATNo
Verified Substitutes 1
5120-01-335-1137 INTERCHANGEABLE
Crowfoot Attachment,socket Wrenc
Cross-Reference Index
Part NumberManufacturer
FC044A Ge Avio Srl (ITA)
FC44A PRIMARY Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc (USA)
FC044A Fincantieri S.p.a. Div Direzione Navi Militari (ITA)
FC44A Fincantieri S.p.a. Div Direzione Navi Militari (ITA)
11A7000191-5 Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army (USA)
FC44A Ge Avio Srl (ITA)
Related Parts
5120-01-335-1137INTERCHANGEABLE
CROWFOOT ATTACHMENT,SOCKET WRENC

Frequently Asked Questions

What is NSN 5120-01-661-6760?

NSN 5120-01-661-6760 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: active.

What are the part numbers for NSN 5120-01-661-6760?

NSN 5120-01-661-6760 has 6 cross-referenced part numbers: FC044A (Ge Avio Srl), FC44A (Idsc Holdings Llc Div Snap-on Industrial, a Div. of Idsc Holdings , Llc), FC044A (Fincantieri S.p.a. Div Direzione Navi Militari), FC44A (Fincantieri S.p.a. Div Direzione Navi Militari), 11A7000191-5 (Devcom Chemical Biological Center Dba Chemical Biological Center Div U.s. Dept of Army) and 1 more.

What NSN replaces 5120-01-661-6760?

There is 1 known substitute for 5120-01-661-6760: 5120-01-335-1137. Verify interchangeability with system specifications before substitution.

What are the specifications of FC44A?

Key specifications for FC44A: Drive End Shape: SQUARE SINGLE END INTERNAL; Material: STEEL OVERALL; Overall Length: 2.375 INCHES NOMINAL IN; End Item Identification: ARSS. 9 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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