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B107.21 TY1CL1 — CROWFOOT ATTACHMENT SET,SOCKET W

✓ Government record, cited
— · COMPONENT
PRODUCT OVERVIEW

B107.21 TY1CL1: CROWFOOT ATTACHMENT SET,SOCKET W.

CROWFOOT ATTACHMENT SET,SOCKET W. Key specifications include material: STEEL OVERALL, opening_width: 0.531 INCHES NOMINAL IN, overall_width: 1.031 INCHES NOMINAL IN, head_thickness: 0.688 INCHES NOMINAL IN, overall_length: 2.125 INCHES NOMINAL IN, drive_end_shape: SQUARE SINGLE END INTERNAL. This part is cataloged in the U.S.

Government catalog under NSN 5120-00-181-6750, indicating validated use in U.S. government and defense logistics supply chains. Available through authorized enterprise resellers and TPM (Third Party Maintenance) channels.

Verify compatibility with your specific system configuration before ordering.

WHERE IT FITS
B107.21 TY1CL1
NSN: 5120-00-181-6750
NIINs: 001816750, 001816752, 001816753, 001816754, 001816755, 001816756, 001816758, 001816759, 001816764, 001816765, 001848385, 001848388, 001848389, 001848391, 001848393, 001848395, 001848396, 001897896, 002247288, 002292772, 002292774, 005414074, 005414075, 008888000, 010078286, 013351110, 013351161, 013351164, 013487310, 013489452, 013489466, 013489472, 013551690, 014284901, 014284944, 014284966, 014288287, 014291098, 014291099, 016644277
FSC: 5120 — Hand Tools, Nonedged, Nonpowered
CAGE: 80244 — GENERAL SERVICES ADMINISTRATION FEDERAL SUPPLY SERVICE (USA)
SPECIFICATIONS
materialSTEEL OVERALL
opening_width0.531 INCHES NOMINAL IN
overall_width1.031 INCHES NOMINAL IN
head_thickness0.688 INCHES NOMINAL IN
overall_length2.125 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
special_featuresFLANK DRIVE
style_designatorOPEN END
surface_treatmentCHROMIUM OVERALL
component_quantity8
drive_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_size0.938 INCHES NOMINAL SINGLE END IN
NSN5120-00-181-6750
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available CROWFOOT ATTACHMENT SET,SOCKET W TITLE COMPONENT PN B107.21 TY1CL1 MFR CROWFOOT ATTACHMENT SE
KEY FEATURES
•
DRIVE SURFACE SIZE: 0.500 INCHES NOMINAL SINGLE END IN
•
WRENCHING SURFACE SIZE: 1.938 INCHES NOMINAL SINGLE END IN
•
STYLE DESIGNATOR: FLARE NUT
•
OPENING WIDTH: 1.438 INCHES NOMINAL IN
•
SPECIFICATION/STANDARD DATA: 0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 1 TYPE AND 1 CLASS AND C STYLE AND A DESIGN
TECHNICAL CHARACTERISTICS
DRIVE SURFACE SIZE0.500 INCHES NOMINAL SINGLE END IN
WRENCHING SURFACE SIZE1.938 INCHES NOMINAL SINGLE END IN
STYLE DESIGNATORFLARE NUT
OPENING WIDTH1.438 INCHES NOMINAL IN
OVERALL LENGTH3.359 INCHES NOMINAL IN
OVERALL WIDTH2.625 INCHES MAXIMUM IN
SPECIFICATION/STANDARD DATA0U583-SAE AS4167 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA1 TYPE AND 1 CLASS AND C STYLE AND A DESIGN
WRENCHING SURFACE SHAPE12 POINT SINGLE END INTERNAL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
SUBSTITUTES & CROSS-REFERENCES 6
AS4167Reference document
Same NSN cross-reference
Reference document — Secondary reference
B107.21 TY1CL3STAReference document
Same NSN cross-reference
Reference document — Secondary reference
AS4167 TY1CL1STCDEAReference document
Same NSN cross-reference
Reference document — Secondary reference
GGG-C-1507Reference document
Same NSN cross-reference
Reference document — Secondary reference
GGG-C-1507 TY1CL3Reference document
Same NSN cross-reference
Reference document — Secondary reference
B107.21Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is B107.21 TY1CL1?
B107.21 TY1CL1 is a CROWFOOT ATTACHMENT SET,SOCKET W.
What parts can replace B107.21 TY1CL1?
There are 6 known substitutes for B107.21 TY1CL1: AS4167, B107.21 TY1CL3STA, AS4167 TY1CL1STCDEA and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B107.21 TY1CL1?
B107.21 TY1CL1 is cataloged in the U.S. Government catalog under NSN 5120-00-181-6750. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.