PartsTable
Technical Data Sheet
Download PDF

1305-51 — TAB,LOCK-VALVE SAFETY,VENTILATIO

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

1305-51: TAB,LOCK-VALVE SAFETY,VENTILATIO.

TAB,LOCK-VALVE SAFETY,VENTILATIO. Key specifications include part_name_assigned_by_controlling_agency: TAB,LOCK-VALVE SAFETY,VENTILATION. This part is cataloged in the U.S.

Government catalog under NSN 5310-00-291-8895, 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
1305-51
NSN: 5310-00-291-8895
NIINs: 002918895, 016772701
FSC: 5310 — Nuts and Washers
CAGE: 0AHP5 — CURTISS-WRIGHT CONTROLS, INC. DIV ACTUATION DIVISION (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyTAB,LOCK-VALVE SAFETY,VENTILATION
NSN5310-00-291-8895
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 1305-51 · 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
•
OVERALL DIAMETER: 0.075 INCHES NOMINAL IN
•
MATERIAL DOCUMENT AND CLASSIFICATION: AMS 3231 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
CROSS-SECTIONAL SHAPE STYLE: RECTANGULAR
•
PERIPHERAL SHAPE STYLE: ROUND
•
MATERIAL: ASBESTOS OVERALL
•
CENTER HOLE SHAPE STYLE: ROUND
•
HOLE DIAMETER: 0.500 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
•
THICKNESS: 0.014 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS
OVERALL DIAMETER0.075 INCHES NOMINAL IN
MATERIAL DOCUMENT AND CLASSIFICATIONAMS 3231 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
CROSS-SECTIONAL SHAPE STYLERECTANGULAR
PERIPHERAL SHAPE STYLEROUND
MATERIALASBESTOS OVERALL
CENTER HOLE SHAPE STYLEROUND
HOLE DIAMETER0.500 INCHES MINIMUM AND 0.515 INCHES MAXIMUM IN
THICKNESS0.014 INCHES MINIMUM AND 0.021 INCHES MAXIMUM IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
Ready to buy 1305-51?
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 1305-51?
1305-51 is a TAB,LOCK-VALVE SAFETY,VENTILATIO.
What is the NSN for 1305-51?
1305-51 is cataloged in the U.S. Government catalog under NSN 5310-00-291-8895. 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 — 1305-51

✓ 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.