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012378 — BLOCK,VERTICAL DRIVE

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

012378: BLOCK,VERTICAL DRIVE.

The BLOCK,VERTICAL DRIVE is a the manufacturer industrial component. Key specifications include material: STEEL, overall_width: 0.500 INCHES NOMINAL IN, overall_height: 0.500 INCHES NOMINAL IN, overall_length: 0.630 INCHES NOMINAL IN, surface_treatment: ZINC, end_item_identification: INDICATOR DIAL. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-395-3548, 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
012378
NSN: 5340-01-395-3548
NIINs: 013953548, 015587873
FSC: 5340 — Hardware, Commercial
CAGE: 55787 — STABILUS (USA)
SPECIFICATIONS
materialSTEEL
overall_width0.500 INCHES NOMINAL IN
overall_height0.500 INCHES NOMINAL IN
overall_length0.630 INCHES NOMINAL IN
surface_treatmentZINC
end_item_identificationINDICATOR DIAL
thread_size_and_series/type_designator0.250-20 UNIFIED NATIONAL COARSE (UNC)
part_name_assigned_by_controlling_agencyDRIVE BLOCK
NSN5340-01-395-3548
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 012378 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
•
STOCK DIAMETER: 0.9000 INCHES MINIMUM AND 1.1000 INCHES MAXIMUM IN
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
SURFACE TREATMENT: CHROMATE AND ZINC
•
WIDTH: 8.5000 INCHES MINIMUM AND 8.9000 INCHES MAXIMUM IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT12.3000 INCHES MINIMUM AND 12.7000 INCHES MAXIMUM IN
STOCK DIAMETER0.9000 INCHES MINIMUM AND 1.1000 INCHES MAXIMUM IN
CASEHARDENING INDICATORNOT CASEHARDENED
SURFACE TREATMENTCHROMATE AND ZINC
WIDTH8.5000 INCHES MINIMUM AND 8.9000 INCHES MAXIMUM IN
MATERIALSTEEL
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 012378?
012378 is a BLOCK,VERTICAL DRIVE.
What is the NSN for 012378?
012378 is cataloged in the U.S. Government catalog under NSN 5340-01-395-3548. 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.