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Technical Data Sheet
PartsTable / COMPONENT / 20081 ITEM 22
20081 ITEM 22 ✓ Verified by PartsTable
— · NUT WASHER
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

The NUT,SELF-LOCKING,HEXAGON is a the manufacturer industrial component. Key specifications include material: PLASTIC POLYAMIDE NYLON LOCKING INSERT, thread_series: UNF, thread_direction: RIGHT-HAND, surface_treatment: ZINC NUT, nominal_thread_size: 0.750 INCHES IN, end_item_identification: OPERATOR ASSY;SEAWOLF CLASS SSN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-485-6189, 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
20081 ITEM 22
NSN: 5310-01-485-6189
FSC: 5310
CAGE: 72166 — B.W. ELLIOTT MANUFACTURING CO., LLC (USA)
SPECIFICATIONS
materialPLASTIC POLYAMIDE NYLON LOCKING INSERT
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentZINC NUT
nominal_thread_size0.750 INCHES IN
end_item_identificationOPERATOR ASSY;SEAWOLF CLASS SSN
thread_quantity_per_inch16
NSN5310-01-485-6189
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 20081 ITEM 22 · OEM ⚠ 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
•
THREAD QUANTITY PER INCH: 16
•
THREAD SERIES: UNF
•
MATERIAL: STEEL NUT
•
SURFACE TREATMENT: ZINC NUT
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.750 INCHES IN
TECHNICAL CHARACTERISTICS (FLIS)
THREAD QUANTITY PER INCH16
THREAD SERIESUNF
MATERIALSTEEL NUT
SURFACE TREATMENTZINC NUT
MATERIALPLASTIC POLYAMIDE NYLON LOCKING INSERT
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.750 INCHES IN
END ITEM IDENTIFICATIONOPERATOR ASSY;SEAWOLF CLASS SSN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
2411 1/2Interchangeable
interchangeable cross-reference
interchangeable
2501 1/2Interchangeable
interchangeable cross-reference
interchangeable
53532Interchangeable
interchangeable cross-reference
interchangeable
B94.9 7/16-20 UNF HS G H1Interchangeable
interchangeable cross-reference
interchangeable
GGG-T-70 TY1SEBSTBInterchangeable
interchangeable cross-reference
interchangeable
A-A-625Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 20081 ITEM 22?
20081 ITEM 22 is a NUT,SELF-LOCKING,HEXAGON.
What parts can replace 20081 ITEM 22?
There are 12 known substitutes for 20081 ITEM 22: 2411 1/2, 2501 1/2, 53532 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 20081 ITEM 22?
20081 ITEM 22 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-485-6189. 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