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431839 — 431839

✓ Government record, cited
— · MRO · MRO_GENERAL
PRODUCT OVERVIEW

431839: 431839.

The 431839 is a the manufacturer industrial component. Key specifications include material: COPPER CONTACT, surface_treatment: GOLD AND NICKEL CONTACT, terminal_type_and_quantity: 1 SOLDER WELL AXIALLY AT ONE END. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-071-0239, 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
MRO→ MRO_GENERAL→ 431839
NSN: 5310-00-071-0239
NIINs: 000710239, 008707479
FSC: 5310 — Nuts and Washers
CAGE: 77445 — RTX CORPORATION DBA PRATT & WHITNEY DIV PRATT &WHITNEY (USA)
SPECIFICATIONS
materialCOPPER CONTACT
surface_treatmentGOLD AND NICKEL CONTACT
terminal_type_and_quantity1 SOLDER WELL AXIALLY AT ONE END
NSN5310-00-071-0239
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 431839 · 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
•
INTERNAL STRAIGHT KEY WIDTH: 0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
•
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY: 0.873 INCHES MINIMUM AND 0.889 INCHES MAXIMUM IN
•
OVERALL DISTANCE INCLUDING KEYS: 1.200 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN
•
STYLE DESIGNATOR: KEY
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 5521 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 1.004 INCHES MINIMUM AND 1.008 INCHES MAXIMUM IN
•
MATERIAL THICKNESS: 0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
•
EXTERNAL KEY QUANTITY: 6
TECHNICAL CHARACTERISTICS
INTERNAL STRAIGHT KEY WIDTH0.075 INCHES MINIMUM AND 0.085 INCHES MAXIMUM IN
DISTANCE FROM CENTERLINE TO TOP OF INTERNAL KEY0.873 INCHES MINIMUM AND 0.889 INCHES MAXIMUM IN
OVERALL DISTANCE INCLUDING KEYS1.200 INCHES MINIMUM AND 1.210 INCHES MAXIMUM IN
STYLE DESIGNATORKEY
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 5521 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER1.004 INCHES MINIMUM AND 1.008 INCHES MAXIMUM IN
MATERIAL THICKNESS0.170 INCHES MINIMUM AND 0.190 INCHES MAXIMUM IN
EXTERNAL KEY QUANTITY6
MATERIALSTEEL COMP 310 OVERALL
INTERNAL KEY QUANTITY1
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Insurance item — stocked against contingency demandNo demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 431839?
431839 is a 431839. It is classified as a MRO (MRO_GENERAL).
What is the NSN for 431839?
431839 is cataloged in the U.S. Government catalog under NSN 5310-00-071-0239. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.