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12142-312 — HANDWHEEL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

12142-312: HANDWHEEL.

The HANDWHEEL is a the manufacturer industrial component. Key specifications include ratchet: NOT INCLUDED, material: COPPER ALLOY OVERALL, drive_width: 0.75 INCHES NOMINAL IN, overall_height: 0.69 INCHES NOMINAL IN, handwheel_style: SPOKES, outside_diameter: 6.0 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-619-5879, 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
12142-312
NSN: 5340-01-619-5879
FSC: 5340 — Hardware, Commercial
CAGE: 72166 — B.W. ELLIOTT MANUFACTURING CO., LLC (USA)
SPECIFICATIONS
ratchetNOT INCLUDED
materialCOPPER ALLOY OVERALL
drive_width0.75 INCHES NOMINAL IN
overall_height0.69 INCHES NOMINAL IN
spoke_quantity4
handwheel_styleSPOKES
outside_diameter6.0 INCHES NOMINAL IN
drive_facility_styleSQUARE
handle_rotating_featureNOT INCLUDED
handle_counterbalancing_weightNOT INCLUDED
NSN5340-01-619-5879
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 12142-312 MFR: OEM ⚠ 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
•
HANDLE ROTATING FEATURE: NOT INCLUDED
•
DRIVE WIDTH: 0.75 INCHES NOMINAL IN
•
HANDLE COUNTERBALANCING WEIGHT: NOT INCLUDED
•
RATCHET: NOT INCLUDED
•
OUTSIDE DIAMETER: 6.0 INCHES NOMINAL IN
•
DRIVE FACILITY STYLE: SQUARE
•
HANDWHEEL STYLE: SPOKES
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.69 INCHES NOMINAL IN
HANDLE ROTATING FEATURENOT INCLUDED
DRIVE WIDTH0.75 INCHES NOMINAL IN
HANDLE COUNTERBALANCING WEIGHTNOT INCLUDED
RATCHETNOT INCLUDED
OUTSIDE DIAMETER6.0 INCHES NOMINAL IN
DRIVE FACILITY STYLESQUARE
HANDWHEEL STYLESPOKES
SPOKE QUANTITY4
MATERIALCOPPER ALLOY OVERALL
OTHER ITEMS IN FSC 5340 — Hardware, Commercial
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
5340-00-000-0068 5340-00-000-0132 5340-00-000-8150 5340-00-001-1251 5340-00-001-1264 5340-00-001-1265 5340-00-001-1266 5340-00-001-1275
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 12142-312?
12142-312 is a HANDWHEEL.
What is the NSN for 12142-312?
12142-312 is cataloged in the U.S. Government catalog under NSN 5340-01-619-5879. 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.