PartsTable
Technical Data Sheet
PartsTable / COMPONENT / P1031
P1031 ✓ 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

NUT,SELF-LOCKING,SLOTTED,HEXAGON. Key specifications include material: STEEL COMP 1117 OVERALL, nut_style: SLOTTED, HEXAGON, nut_height: 0.125 INCHES NOMINAL IN, temp_rating: 550.0 FAHRENHEIT NOMINAL DEGF, thread_class: 2B, overall_width: 5.375 INCHES NOMINAL IN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-021-8440, 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
P1031
NSN: 5310-00-021-8440
FSC: 5310
CAGE: 80212 — BAE SYSTEMS LAND & ARMAMENTS L.P. (USA)
SPECIFICATIONS
materialSTEEL COMP 1117 OVERALL
nut_styleSLOTTED, HEXAGON
nut_height0.125 INCHES NOMINAL IN
temp_rating550.0 FAHRENHEIT NOMINAL DEGF
thread_class2B
overall_width5.375 INCHES NOMINAL IN
thread_seriesUNIFIED NATIONAL COARSE (UNC)
overall_length3.500 INCHES NOMINAL IN
locking_featurePREVAILING TORQUE ALL METAL DESIGN
special_featuresWASHER FACE SQ TO AXIS OF THD WITHIN 0.002 IN. FULL INDICATOR READING IN
style_designatorTEE
thread_directionRIGHT-HAND
NSN5310-00-021-8440
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: P1031 · 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
•
THREAD DIRECTION: RIGHT-HAND
•
THREAD QUANTITY PER INCH: 13
•
THREAD SERIES: UNIFIED NATIONAL COARSE (UNC)
•
NOMINAL THREAD SIZE: 0.500 INCHES IN
•
BEARING SURFACE TYPE: CHAMFERED OR WASHER FACED
•
MATERIAL: STEEL OVERALL
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD CLASS: 2B
TECHNICAL CHARACTERISTICS (FLIS)
THREAD DIRECTIONRIGHT-HAND
THREAD QUANTITY PER INCH13
THREAD SERIESUNIFIED NATIONAL COARSE (UNC)
NOMINAL THREAD SIZE0.500 INCHES IN
BEARING SURFACE TYPECHAMFERED OR WASHER FACED
MATERIALSTEEL OVERALL
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-633-CANC FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD CLASS2B
NONDEFINITIVE SPEC/STD DATAA TYPE
NUT STYLEHEXAGON
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
91093-5Interchangeable
interchangeable cross-reference
interchangeable
281-1002P5Interchangeable
interchangeable cross-reference
interchangeable
P1031Interchangeable
interchangeable cross-reference
interchangeable
E254REV3PC16Interchangeable
interchangeable cross-reference
interchangeable
E255R3PC16Interchangeable
interchangeable cross-reference
interchangeable
B133Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
Ready to buy P1031?
Compare prices from verified sellers on eBay
Buy on eBay →
As an eBay Partner, PartsTable may earn a commission. Your price is not affected.
FREQUENTLY ASKED QUESTIONS
What is P1031?
P1031 is a NUT,SELF-LOCKING,SLOTTED,HEXAGON.
What parts can replace P1031?
There are 11 known substitutes for P1031: 91093-5, 281-1002P5, P1031 and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for P1031?
P1031 is cataloged in the Federal Logistics Information System (FLIS) under NSN 5310-00-021-8440. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Comments (0)
No comments yet. Be the first to share what you know.
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — P1031

✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026