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Technical Data Sheet
PartsTable / COMPONENT / 1-13/16ID X 2-3 /4OD X 1/4THK B
1-13/16ID X 2-3 /4OD X 1/4THK B ✓ 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 1-13/16ID X 2-3 /4OD X 1/4THK B 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 5310-01-474-8411, 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
1-13/16ID X 2-3 /4OD X 1/4THK B
NSN: 5310-01-474-8411
FSC: 5310
CAGE: D9182 — ZF INDUSTRIEANTRIEBE WITTEN GMBH (DEU)
SPECIFICATIONS
Part Number1-13/16ID X 2-3 /4OD X 1/4THK B
NSN5310-01-474-8411
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1-13/16ID X 2-3 /4OD X 1/4THK B · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
MATERIAL: COPPER ALLOY OVERALL
•
PERIPHERAL SHAPE STYLE: ROUND
•
THICKNESS: 0.250 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
CENTER HOLE SHAPE STYLE: ROUND
•
OVERALL DIAMETER: 2.750 INCHES NOMINAL IN
•
HOLE DIAMETER: 1.8125 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-B-637 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
MATERIALCOPPER ALLOY OVERALL
PERIPHERAL SHAPE STYLEROUND
THICKNESS0.250 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
CENTER HOLE SHAPE STYLEROUND
OVERALL DIAMETER2.750 INCHES NOMINAL IN
HOLE DIAMETER1.8125 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYNAVY SPECIAL PROJECT
VERIFIED SUBSTITUTES & CROSS-REFERENCES 6
124-4322648 PC 8Interchangeable
interchangeable cross-reference
interchangeable
4639027Interchangeable
interchangeable cross-reference
interchangeable
124-4365872 PC 8Interchangeable
interchangeable cross-reference
interchangeable
25/32ID X 2-1/4 OD X 3/16THK BRInterchangeable
interchangeable cross-reference
interchangeable
124-4637387 PC 18Interchangeable
interchangeable cross-reference
interchangeable
4637387Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1-13/16ID X 2-3 /4OD X 1/4THK B?
1-13/16ID X 2-3 /4OD X 1/4THK B is a 1-13/16ID X 2-3 /4OD X 1/4THK B.
What parts can replace 1-13/16ID X 2-3 /4OD X 1/4THK B?
There are 6 known substitutes for 1-13/16ID X 2-3 /4OD X 1/4THK B: 124-4322648 PC 8, 4639027, 124-4365872 PC 8 and 3 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1-13/16ID X 2-3 /4OD X 1/4THK B?
1-13/16ID X 2-3 /4OD X 1/4THK B is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-01-474-8411. 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