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Technical Data Sheet

8701221 — Technical Data Sheet

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— · 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,PLAIN,ASSEMBLED WASHER is a the manufacturer industrial component. Key specifications include width: 13.125 INCHES NOMINAL IN, length: 4.250 INCHES NOMINAL IN, material: ALUMINUM ALLOY, thickness: 0.030 INCHES NOMINAL IN, attachment_method: HOLE, basic_shape_style: RECTANGULAR. This part is cataloged in the Federal Logistics Information System under NSN 5310-00-052-3632, 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
8701221
NSN: 5310-00-052-3632
FSC: 5310
CAGE: 44940 — CUMMINS POWER GENERATION INC. (USA)
SPECIFICATIONS
width13.125 INCHES NOMINAL IN
length4.250 INCHES NOMINAL IN
materialALUMINUM ALLOY
thickness0.030 INCHES NOMINAL IN
inscriptionPARTIAL LEGEND,SEMI TRAILER,WRECKER,12 TON,4 WHEEL,M-270,ORDNANCE STOCK NO. G2802-835-8754,MANUFACTURED BY ---,MFG. SERIAL NO. ---, LOCATION NOT OTHERWISE SPECIFIED
attachment_methodHOLE
basic_shape_styleRECTANGULAR
surface_treatmentANODIZE
marking_designationLEGEND LOCATION NOT OTHERWISE SPECIFIED
environmental_protectionABRASION RESISTANT AND ACCELERATED LIGHT AND ACID RESISTANT AND HEAT AND SALT SPRAY RESISTANT AND WEATHER RESISTANT
material_document_and_classificationQQ-A-250/1, ALLOY 1100 FED SPEC SINGLE MATERIAL RESPONSE
surface_treatment_document_and_classificationMIL-A-8625, TYPE 2, CLASS 2 MIL SPEC SINGLE TREATMENT RESPONSE
NSN5310-00-052-3632
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 8701221 · 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
•
WASHER OUTSIDE DIAMETER: 0.375 INCHES NOMINAL IN
•
THREAD QUANTITY PER INCH: 32
•
NOMINAL THREAD SIZE: 0.164 INCHES IN
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
MATERIAL: STEEL COMP 1020 OVERALL
•
NUT HEIGHT: 0.156 INCHES NOMINAL IN
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS
WASHER OUTSIDE DIAMETER0.375 INCHES NOMINAL IN
THREAD QUANTITY PER INCH32
NOMINAL THREAD SIZE0.164 INCHES IN
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
MATERIALSTEEL COMP 1020 OVERALL
NUT HEIGHT0.156 INCHES NOMINAL IN
THREAD CLASS2B
OVERALL HEIGHT0.176 INCHES NOMINAL IN
NUT STYLEEXTERNAL TOOTH
THREAD DIRECTIONRIGHT-HAND
VERIFIED SUBSTITUTES & CROSS-REFERENCES 24
511-081800-00InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
5310PL0995638InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
210-0458-00InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
9226InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
141284InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
51363-R PC7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 8701221?
8701221 is a NUT,PLAIN,ASSEMBLED WASHER.
What parts can replace 8701221?
There are 24 known substitutes for 8701221: 511-081800-00, 5310PL0995638, 210-0458-00 and 21 more. Substitute compatibility should be verified for your specific system.
Is 8701221 still available?
8701221 is currently cancelled.
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