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Technical Data Sheet
PartsTable / COMPONENT / QQ-N-281D
QQ-N-281D ✓ 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 KEY,MACHINE is a the manufacturer industrial component. Key specifications include width: 36.000 INCHES NOMINAL IN, length: 10.000 FEET NOMINAL FT, material: NICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL, head_style: HEADLESS (SETSCREW), point_style: CUP, thread_class: 3A A. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-132-8070, 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
QQ-N-281D
NSN: 5315-00-132-8070
FSC: 5315
CAGE: 81348 — FEDERAL SPECIFICATIONS PROMULGATED BY GENERAL SERVICES ADMINISTRATION WASHINGTON DC (USA)
SPECIFICATIONS
width36.000 INCHES NOMINAL IN
length10.000 FEET NOMINAL FT
materialNICKEL ALLOY 400 OR NICKEL ALLOY R-405 OVERALL
head_styleHEADLESS (SETSCREW)
point_styleCUP
thread_class3A A
overall_width0.312 INCHES NOMINAL IN
thread_length0.500 INCHES MAXIMUM IN
heat_treatmentANNEALED
overall_height0.312 INCHES NOMINAL IN
overall_length0.875 INCHES NOMINAL IN
fastener_length0.500 INCHES NOMINAL IN
NSN5315-00-132-8070
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: QQ-N-281D · 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
•
STARTING EDGE SHAPE: STRAIGHT
•
STYLE DESIGNATOR: PLAIN
•
MATERIAL: NICKEL ALLOY 400 OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
OVERALL LENGTH0.875 INCHES NOMINAL IN
OVERALL HEIGHT0.312 INCHES NOMINAL IN
STARTING EDGE SHAPESTRAIGHT
STYLE DESIGNATORPLAIN
MATERIALNICKEL ALLOY 400 OVERALL
OVERALL WIDTH0.312 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-N-894 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 12
QQ-N-281DInterchangeable
interchangeable cross-reference
interchangeable
A162242Interchangeable
interchangeable cross-reference
interchangeable
11783Interchangeable
interchangeable cross-reference
interchangeable
10510P11Interchangeable
interchangeable cross-reference
interchangeable
569-4700-1189569PCSP14Interchangeable
interchangeable cross-reference
interchangeable
525-4700-87303REV1PCS37Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is QQ-N-281D?
QQ-N-281D is a KEY,MACHINE.
What parts can replace QQ-N-281D?
There are 12 known substitutes for QQ-N-281D: QQ-N-281D, A162242, 11783 and 9 more. Substitute compatibility should be verified for your specific system.
What is the NSN for QQ-N-281D?
QQ-N-281D is cataloged in the Federal Logistics Information System (FLIS) under NSN 5315-00-132-8070. 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