PartsTable
Technical Data Sheet
Download PDF

12509511 — WASHER,SEAL

✓ Government record, cited
— · NUT WASHER
PRODUCT OVERVIEW

12509511: WASHER,SEAL.

The WASHER,SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC OVERALL, hole_diameter: 19.1 MILLIMETERS NOMINAL19.1 MILLIMETERS NOMINAL MM, overall_height: 2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM, outside_diameter: 38.1 MILLIMETERS NOMINAL38.1 MILLIMETERS NOMINAL MM, material_thickness: 2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM, supplementary_features: NHA-12509272. This part is cataloged in the U.S.

Government catalog under NSN 5310-01-583-3972, 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
12509511
NSN: 5310-01-583-3972
FSC: 5310 — Nuts and Washers
CAGE: 19207 — U S ARMY TANK AUTOMOTIVE COMMAND AMSTA-IM-MM (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC OVERALL
hole_diameter19.1 MILLIMETERS NOMINAL19.1 MILLIMETERS NOMINAL MM
overall_height2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM
hardness_rating60.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM70.0 SHORE DUROMETER A MAXIMUM
outside_diameter38.1 MILLIMETERS NOMINAL38.1 MILLIMETERS NOMINAL MM
material_thickness2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM
supplementary_featuresNHA-12509272
end_item_identification2320-01-565-3428, CHASSIS,TRUCK; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)2320-01-565-3428, CHASSIS,TRUCK; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
material_document_and_classificationASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
part_name_assigned_by_controlling_agencyWASHER, SEALINGWASHER, SEALING
NSN5310-01-583-3972
COMPONENT DIAGRAM
NUT & WASHER — GRADE MATCHING REQUIRED Hex NUT CROSS-SECTION WASHER OD: — SIZE: — MATERIAL: — PN: 12509511 · 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
•
SUPPLEMENTARY FEATURES: NHA-12509272
•
HARDNESS RATING: 60.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM70.0 SHORE DUROMETER A MAXIMUM
•
MATERIAL DOCUMENT AND CLASSIFICATION: ASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
•
OUTSIDE DIAMETER: 38.1 MILLIMETERS NOMINAL38.1 MILLIMETERS NOMINAL MM
•
MATERIAL THICKNESS: 2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM
SUPPLEMENTARY FEATURESNHA-12509272
HARDNESS RATING60.0 SHORE DUROMETER A MINIMUM AND 60.0 SHORE DUROMETER A MINIMUM AND 70.0 SHORE DUROMETER A MAXIMUM70.0 SHORE DUROMETER A MAXIMUM
MATERIAL DOCUMENT AND CLASSIFICATIONASTM D2000 ASSN STD SINGLE MATERIAL RESPONSE OVERALL
OUTSIDE DIAMETER38.1 MILLIMETERS NOMINAL38.1 MILLIMETERS NOMINAL MM
MATERIAL THICKNESS2.4 MILLIMETERS NOMINAL2.4 MILLIMETERS NOMINAL MM
PART NAME ASSIGNED BY CONTROLLING AGENCYWASHER, SEALINGWASHER, SEALING
END ITEM IDENTIFICATION2320-01-565-3428, CHASSIS,TRUCK; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)2320-01-565-3428, CHASSIS,TRUCK; HIGH-MOBILITY ARTILLERY ROCKET SYSTEM (HIMARS)
MATERIALRUBBER SYNTHETIC OVERALL
HOLE DIAMETER19.1 MILLIMETERS NOMINAL19.1 MILLIMETERS NOMINAL MM
OTHER ITEMS IN FSC 5310 — Nuts and Washers
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5310-00-000-0040 5310-00-000-0077 5310-00-000-0079 5310-00-000-1146 5310-00-000-3815 5310-00-000-4532 5310-00-000-4540
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
Ready to buy 12509511?
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 12509511?
12509511 is a WASHER,SEAL.
What is the NSN for 12509511?
12509511 is cataloged in the U.S. Government catalog under NSN 5310-01-583-3972. 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 — 12509511

✓ 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.