PartsTable
Technical Data Sheet
Download PDF

4313 231 — SEAL,PLAIN

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

4313 231: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include material: STEEL COMP 302 OVERALL, nut_style: KNURLED, nut_diameter: 0.438 INCHES NOMINAL IN, thread_class: 2B, nut_thickness: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN, thread_series: UNF. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-802-2514, 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
4313 231
NSN: 5310-00-802-2514
NIINs: 008022514, 013753110
FSC: 5310 — Nuts and Washers
CAGE: 96214 — RAYTHEON COMPANY DBA RAYTHEON (USA)
SPECIFICATIONS
materialSTEEL COMP 302 OVERALL
nut_styleKNURLED
nut_diameter0.438 INCHES NOMINAL IN
thread_class2B
nut_thickness0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
thread_seriesUNF
thread_directionRIGHT-HAND
surface_treatmentPASSIVATE OVERALL
nominal_thread_size0.138 INCHES IN
thread_quantity_per_inch40
material_document_and_classificationQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
NSN5310-00-802-2514
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 4313 231 · 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 SERIES: UNF
•
MATERIAL DOCUMENT AND CLASSIFICATION: QQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.138 INCHES IN
•
NUT DIAMETER: 0.438 INCHES NOMINAL IN
•
NUT THICKNESS: 0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
•
SURFACE TREATMENT: PASSIVATE OVERALL
•
NUT STYLE: KNURLED
TECHNICAL CHARACTERISTICS
THREAD SERIESUNF
MATERIAL DOCUMENT AND CLASSIFICATIONQQ-S-763 FED SPEC SINGLE MATERIAL RESPONSE OVERALL
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.138 INCHES IN
NUT DIAMETER0.438 INCHES NOMINAL IN
NUT THICKNESS0.109 INCHES MINIMUM AND 0.141 INCHES MAXIMUM IN
SURFACE TREATMENTPASSIVATE OVERALL
NUT STYLEKNURLED
THREAD CLASS2B
THREAD QUANTITY PER INCH40
SUBSTITUTES & CROSS-REFERENCES 1
G272826Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 4313 231?
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 4313 231?
4313 231 is a SEAL,PLAIN.
What parts can replace 4313 231?
There is 1 known substitute for 4313 231: G272826. Substitute compatibility should be verified for your specific system.
What is the NSN for 4313 231?
4313 231 is cataloged in the U.S. Government catalog under NSN 5310-00-802-2514. This indicates validated use in U.S. government and defense supply chains.
Community Feedback
Leave a Comment
Comments are reviewed before appearing. You will receive an email to verify before your comment appears.

Request a Quote — 4313 231

✓ 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.