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304-141 — SEAL,PLAIN

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

304-141: SEAL,PLAIN.

The SEAL,PLAIN is a the manufacturer industrial component. Key specifications include specification/standard_data: 09055-304-141 MANUFACTURERS STANDARD. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-959-5320, 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
304-141
NSN: 5310-00-959-5320
NIINs: 009595320, 013461267
FSC: 5310 — Nuts and Washers
CAGE: 55820 — RTX CORPORATION DIV PRATT & WHITNEY (USA)
SPECIFICATIONS
specification/standard_data09055-304-141 MANUFACTURERS STANDARD
NSN5310-00-959-5320
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 304-141 · 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: UNS
•
THREAD PITCH DIAMETERS: +0.5657 TO 0.5687 INCHES IN
•
DRIVE POINT WIDTH: 0.125 INCHES NOMINAL IN
•
THREAD DIRECTION: RIGHT-HAND
•
NOMINAL THREAD SIZE: 0.586 INCHES IN
•
NUT DIAMETER: 1.000 INCHES NOMINAL IN
•
DRIVE POINT DEPTH: 0.093 INCHES NOMINAL IN
•
UNDERCUT THICKNESS: 0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
THREAD SERIESUNS
THREAD PITCH DIAMETERS+0.5657 TO 0.5687 INCHES IN
DRIVE POINT WIDTH0.125 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
NOMINAL THREAD SIZE0.586 INCHES IN
NUT DIAMETER1.000 INCHES NOMINAL IN
DRIVE POINT DEPTH0.093 INCHES NOMINAL IN
UNDERCUT THICKNESS0.080 INCHES MINIMUM AND 0.090 INCHES MAXIMUM IN
NUT THICKNESS0.312 INCHES NOMINAL IN
SMALL END DIAMETER0.646 INCHES MINIMUM AND 0.656 INCHES MAXIMUM IN
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 304-141?
304-141 is a SEAL,PLAIN.
What is the NSN for 304-141?
304-141 is cataloged in the U.S. Government catalog under NSN 5310-00-959-5320. 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.