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Technical Data Sheet
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1024521 — WELDMENT

✓ Government record, cited
3M · ORING SEAL
PRODUCT OVERVIEW

1024521: WELDMENT.

The WELDMENT is a 3M industrial component. Key specifications include fsc_application_data: SWEEPER, ROTARY, VEHICLE MOUNTING, end_item_identification: SWEEPER, ROTARY, VEHICLE MOUNTING; CROSSWIND J-PLUS; 3830-01-504-2618, part_name_assigned_by_controlling_agency: PLATE WELDMENT. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-558-6281, 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
1024521
NSN: 5340-00-558-6281
NIINs: 005586281, 015099626
FSC: 5340 — Hardware, Commercial
CAGE: 03848 — ARMA DIV AMBAC INDUSTRIES INC
SPECIFICATIONS
fsc_application_dataSWEEPER, ROTARY, VEHICLE MOUNTING
end_item_identificationSWEEPER, ROTARY, VEHICLE MOUNTING; CROSSWIND J-PLUS; 3830-01-504-2618
part_name_assigned_by_controlling_agencyPLATE WELDMENT
NSN5340-00-558-6281
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 1024521 MFR: 3M ⚠ VERIFY BEFORE ORDERING Wrong material = failure. Viton for oil/fuel, EPDM for water/steam, Buna-N for general purpose, Silicone for food-grade. Chemical incompatibility causes swelling, brittleness, or rapid degradation ✓ BROKER TIP Durometer (hardness) affects sealing pressure tolerance. Higher Shore A = harder = higher pressure. Standard durometer is 70A — verify if application requires different hardness PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
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SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH: 0.312 INCHES NOMINAL IN
•
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH: 0.219 INCHES NOMINAL IN
•
FIRST LEG HOLE DIAMETER: 0.219 INCHES NOMINAL IN
•
FIRST LEG ANGLE: 90.0 DEGREES NOMINAL
•
SECOND LEG RELATIONSHIP TO FIRST LEG: NOT IDENTICAL
•
SECOND LEG HOLE DIAMETER: 0.138 INCHES NOMINAL IN
•
SECOND LEG WIDTH: 0.750 INCHES NOMINAL IN
•
SECOND LEG LENGTH: 1.062 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH0.312 INCHES NOMINAL IN
FIRST LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG LENGTH0.219 INCHES NOMINAL IN
FIRST LEG HOLE DIAMETER0.219 INCHES NOMINAL IN
FIRST LEG ANGLE90.0 DEGREES NOMINAL
SECOND LEG RELATIONSHIP TO FIRST LEGNOT IDENTICAL
SECOND LEG HOLE DIAMETER0.138 INCHES NOMINAL IN
SECOND LEG WIDTH0.750 INCHES NOMINAL IN
SECOND LEG LENGTH1.062 INCHES NOMINAL IN
FIRST LEG HOLE ARRANGEMENT STYLEONE HOLE
SECOND LEG DISTANCE FROM EDGE TO HOLE CENTER ALONG WIDTH0.156 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1024521?
1024521 is a WELDMENT manufactured by 3M.
What is the NSN for 1024521?
1024521 is cataloged in the U.S. Government catalog under NSN 5340-00-558-6281. 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.