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1AP38 ✓ Verified by PartsTable
— · COMPONENT
WHAT YOU NEED TO KNOW
Verify manufacturer and server generation compatibility Check if Option PN or Spare PN — same part, different channel
Confirm exact part number — similar PNs may be different parts
PRODUCT OVERVIEW

UNIVERSAL JOINT,SOCKET WRENCH AT. Key specifications include material: STEEL OVERALL, overall_length: 4.250 INCHES MAXIMUM IN, drive_end_shape: SQUARE SECOND END EXTERNAL, style_designator: EXTERNAL-INTERNAL, features_provided: MANUAL TOOL, surface_treatment: CHROMIUM OVERALL. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-399-9735, 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
1AP38
NSN: 5120-01-399-9735
FSC: 5120
CAGE: 25795 — W.W. GRAINGER, INC. DIV GOVERNMENT SALES DIVISION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_length4.250 INCHES MAXIMUM IN
drive_end_shapeSQUARE SECOND END EXTERNAL
style_designatorEXTERNAL-INTERNAL
features_providedMANUAL TOOL
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.750 INCHES NOMINAL BOTH ENDS IN
nondefinitive_spec/std_data2 TYPE AND 1 CLASS
specification/standard_data0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-01-399-9735
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR No detailed specs available UNIVERSAL JOINT,SOCKET WRENCH AT TITLE COMPONENT PN 1AP38 MFR UNIVERSAL JOINT,SOCKET
KEY FEATURES
•
DRIVE END SHAPE: SQUARE SECOND END EXTERNAL
•
MATERIAL: STEEL OVERALL
•
DRIVE SURFACE SIZE: 0.750 INCHES NOMINAL BOTH ENDS IN
•
STYLE DESIGNATOR: EXTERNAL-INTERNAL
•
FEATURES PROVIDED: MANUAL TOOL
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 1 CLASS
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE END SHAPESQUARE SECOND END EXTERNAL
MATERIALSTEEL OVERALL
DRIVE SURFACE SIZE0.750 INCHES NOMINAL BOTH ENDS IN
STYLE DESIGNATOREXTERNAL-INTERNAL
DRIVE END SHAPESQUARE FIRST END INTERNAL
FEATURES PROVIDEDMANUAL TOOL
OVERALL LENGTH4.250 INCHES MAXIMUM IN
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 CLASS
SPECIFICATION/STANDARD DATA0U583-SAE AS4283 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
SURFACE TREATMENTCHROMIUM OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 16
GB268Interchangeable
interchangeable cross-reference
interchangeable
5670Interchangeable
interchangeable cross-reference
interchangeable
663396-000Interchangeable
interchangeable cross-reference
interchangeable
663396Interchangeable
interchangeable cross-reference
interchangeable
J5670Interchangeable
interchangeable cross-reference
interchangeable
900588-138Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1AP38?
1AP38 is a UNIVERSAL JOINT,SOCKET WRENCH AT.
What parts can replace 1AP38?
There are 16 known substitutes for 1AP38: GB268, 5670, 663396-000 and 13 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1AP38?
1AP38 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-01-399-9735. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026