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Technical Data Sheet
PartsTable / MRO / 81601
81601 ✓ Verified by PartsTable
InLine · MRO · MRO_GENERAL
WHAT YOU NEED TO KNOW
Match nut grade to bolt grade for full strength Lock nuts prevent loosening under vibration
Don't mix grades — weakens the joint
PRODUCT OVERVIEW

- LWL Duplex cable<br>- 2x ST plug to 2x ST plug<br>- Thread: 62.5/125µm, OM2<br>- No halogen. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-057-0685, 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
MRO→ MRO_GENERAL→ 81601
NSN: 5315-00-057-0685
FSC: 5315
CAGE: 02121 — GOODRICH AEROSPACE CANADA LTD (CAN)
SPECIFICATIONS
Part Number81601
ManufacturerInLine
NSN5315-00-057-0685
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 81601 · InLine ⚠ VERIFY BEFORE ORDERING Grade matters for torque spec — don't mix grades. A Grade 5 nut on a Grade 8 bolt weakens the joint. Lock nuts, wing nuts, and castle nuts are NOT interchangeable with standard hex ✓ BROKER TIP Match nut to bolt thread class and material. Stainless bolt + zinc nut = galvanic corrosion. Always verify finish matches (plain, zinc, hot-dip galvanized) PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
HEAD STYLE: ROUND W/WRENCH FLATS
•
EFFECTIVE LENGTH: 0.220 INCHES NOMINAL IN
•
HEIGHT: 0.200 INCHES NOMINAL IN
•
DIAMETER: 0.187 INCHES NOMINAL IN
•
PIN HEAD DIAMETER: 0.340 INCHES NOMINAL IN
•
STYLE DESIGNATOR: GROOVE
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-5000,COND D MIL SPEC ALL MATERIAL RESPONSES OVERALL
•
UNDER HEAD LENGTH: 0.410 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEAD STYLEROUND W/WRENCH FLATS
EFFECTIVE LENGTH0.220 INCHES NOMINAL IN
HEIGHT0.200 INCHES NOMINAL IN
DIAMETER0.187 INCHES NOMINAL IN
PIN HEAD DIAMETER0.340 INCHES NOMINAL IN
STYLE DESIGNATORGROOVE
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-5000,COND D MIL SPEC ALL MATERIAL RESPONSES OVERALL
UNDER HEAD LENGTH0.410 INCHES NOMINAL IN
UNDERCUT WIDTH0.080 INCHES NOMINAL IN
UNDERCUT DIAMETER0.100 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 9
7620360PT32Interchangeable
interchangeable cross-reference
interchangeable
25-1070Interchangeable
interchangeable cross-reference
interchangeable
BA-10034-121Interchangeable
interchangeable cross-reference
interchangeable
81601Interchangeable
interchangeable cross-reference
interchangeable
33764Interchangeable
interchangeable cross-reference
interchangeable
AR-29601RInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 81601?
81601 is a RESISTOR,VARIABLE,NONWIRE WOUND, manufactured by InLine. It is classified as a MRO (MRO_GENERAL).
What parts can replace 81601?
There are 9 known substitutes for 81601: 7620360PT32, 25-1070, BA-10034-121 and 6 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 81601?
81601 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-057-0685. 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