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Technical Data Sheet
PartsTable / COMPONENT / B-171-164-2
B-171-164-2 ✓ 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,CAP 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 5310-01-025-3770, 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
B-171-164-2
NSN: 5310-01-025-3770
FSC: 5310
CAGE: 11440 — GE STEAM POWER INC DBA GE STEAM POWER, INC DIV GENERAL ELECTRIC (USA)
SPECIFICATIONS
general_characteristics_item_descriptionSTEEL; FIRST END 1.219 IN. ID,2 FLATS 2.000 IN. ACROSS 180.0 DEG APART; SECOND END 2.250 IN. OD,INT THD 2.000 IN. 16UNS-2B IN
NSN5310-01-025-3770
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: B-171-164-2 · 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
•
GENERAL CHARACTERISTICS ITEM DESCRIPTION: STEEL; FIRST END 1.219 IN. ID,2 FLATS 2.000 IN. ACROSS 180.0 DEG APART; SECOND END 2.250 IN. OD,INT THD 2.000 IN. 16UNS-2B IN
TECHNICAL CHARACTERISTICS (FLIS)
GENERAL CHARACTERISTICS ITEM DESCRIPTIONSTEEL; FIRST END 1.219 IN. ID,2 FLATS 2.000 IN. ACROSS 180.0 DEG APART; SECOND END 2.250 IN. OD,INT THD 2.000 IN. 16UNS-2B IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 13
4469Interchangeable
interchangeable cross-reference
interchangeable
4615Interchangeable
interchangeable cross-reference
interchangeable
0E915Interchangeable
interchangeable cross-reference
interchangeable
601156Interchangeable
interchangeable cross-reference
interchangeable
2912532-13Interchangeable
interchangeable cross-reference
interchangeable
1730PL2172629Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is B-171-164-2?
B-171-164-2 is a NUT,CAP.
What parts can replace B-171-164-2?
There are 13 known substitutes for B-171-164-2: 4469, 4615, 0E915 and 10 more. Substitute compatibility should be verified for your specific system.
What is the NSN for B-171-164-2?
B-171-164-2 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-025-3770. 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