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Technical Data Sheet
PartsTable / COMPONENT / 8173B
8173B ✓ 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,PISTON is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-058-0248, 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
8173B
NSN: 5310-01-058-0248
FSC: 5310
CAGE: 93236 — DRESSER-RAND CO WORTHINGTON COMPRESSOR OPN A JOINT VENTURE (USA)
SPECIFICATIONS
Part Number8173B
NSN5310-01-058-0248
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8173B · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 10
60-0002Interchangeable
interchangeable cross-reference
interchangeable
57F903557-7Interchangeable
interchangeable cross-reference
interchangeable
MIL-A-8897Interchangeable
interchangeable cross-reference
interchangeable
TC-EP-EInterchangeable
interchangeable cross-reference
interchangeable
866-440-4Interchangeable
interchangeable cross-reference
interchangeable
820591PL FIND 4Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8173B?
8173B is a NUT,PISTON.
What parts can replace 8173B?
There are 10 known substitutes for 8173B: 60-0002, 57F903557-7, MIL-A-8897 and 7 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 8173B?
8173B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-058-0248. 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