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Technical Data Sheet
PartsTable / COMPONENT / 81606
81606 ✓ Verified by PartsTable
Jumbo · 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

CROWFOOT ATTACHMENT,SOCKET WRENC. Key specifications include material: STEEL OVERALL, overall_width: 1.000 INCHES NOMINAL IN, head_thickness: 0.250 INCHES NOMINAL IN, overall_length: 1.526 INCHES NOMINAL IN, drive_end_shape: SQUARE SINGLE END INTERNAL, style_designator: OPEN END CAMBER. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5120-00-184-8397, 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
81606
NSN: 5120-00-184-8397
FSC: 5120
CAGE: 65LN0 — APEX TOOL GROUP, LLC (USA)
SPECIFICATIONS
materialSTEEL OVERALL
overall_width1.000 INCHES NOMINAL IN
head_thickness0.250 INCHES NOMINAL IN
overall_length1.526 INCHES NOMINAL IN
drive_end_shapeSQUARE SINGLE END INTERNAL
style_designatorOPEN END CAMBER
surface_treatmentCHROMIUM OVERALL
drive_surface_size0.375 INCHES NOMINAL SINGLE END IN
wrenching_surface_size0.562 INCHES NOMINAL SINGLE END IN
wrenching_surface_shapeOVAL SINGLE END INTERNAL
nondefinitive_spec/std_data2 TYPE AND 1 CLASS
specification/standard_data05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NSN5120-00-184-8397
COMPONENT DIAGRAM
COMPONENT MAIN IC EDGE CONNECTOR MFR: Jumbo CROWFOOT ATTACHMENT,SOCKET WRENC TITLE COMPONENT PN 81606 MFR Jumbo CROWFOOT ATTACHMENT,SO
KEY FEATURES
•
WRENCHING SURFACE SHAPE: OVAL SINGLE END INTERNAL
•
SPECIFICATION/STANDARD DATA: 05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
•
NONDEFINITIVE SPEC/STD DATA: 2 TYPE AND 1 CLASS
•
WRENCHING SURFACE SIZE: 0.562 INCHES NOMINAL SINGLE END IN
•
MATERIAL: STEEL OVERALL
•
DRIVE END SHAPE: SQUARE SINGLE END INTERNAL
•
DRIVE SURFACE SIZE: 0.375 INCHES NOMINAL SINGLE END IN
•
SURFACE TREATMENT: CHROMIUM OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
WRENCHING SURFACE SHAPEOVAL SINGLE END INTERNAL
SPECIFICATION/STANDARD DATA05047-ASME B107.100 CAT 21 PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD
NONDEFINITIVE SPEC/STD DATA2 TYPE AND 1 CLASS
WRENCHING SURFACE SIZE0.562 INCHES NOMINAL SINGLE END IN
MATERIALSTEEL OVERALL
DRIVE END SHAPESQUARE SINGLE END INTERNAL
DRIVE SURFACE SIZE0.375 INCHES NOMINAL SINGLE END IN
SURFACE TREATMENTCHROMIUM OVERALL
OVERALL WIDTH1.000 INCHES NOMINAL IN
OVERALL LENGTH1.526 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 21
3318Interchangeable
interchangeable cross-reference
interchangeable
A-A-59585Interchangeable
interchangeable cross-reference
interchangeable
SKF6318JInterchangeable
interchangeable cross-reference
interchangeable
416821-53-DEInterchangeable
interchangeable cross-reference
interchangeable
3308Interchangeable
interchangeable cross-reference
interchangeable
7900-842424-4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81606?
81606 is a CROWFOOT ATTACHMENT,SOCKET WRENC manufactured by Jumbo.
What parts can replace 81606?
There are 21 known substitutes for 81606: 3318, A-A-59585, SKF6318J and 18 more. Substitute compatibility should be verified for your specific system.
Is 81606 still available?
81606 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026