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4HB940 — BRACKET,MOUNTING

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4HB940: BRACKET,MOUNTING.

The BRACKET,MOUNTING is a the manufacturer industrial component. Key specifications include material: STEEL, overall_height: 3.250 INCHES NOMINAL IN, overall_length: 5.000 INCHES NOMINAL IN, mounting_hole_diameter: 0.281 INCHES NOMINAL IN, end_item_identification: NSN 3990-01-444-6174 BITUM DISTRIBUTOR, part_name_assigned_by_controlling_agency: BRACKET SUPPORT, BUTTERFLY VALVE LEVER. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-540-8810, 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
4HB940
NSN: 5340-01-540-8810
FSC: 5340 — Hardware, Commercial
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialSTEEL
overall_height3.250 INCHES NOMINAL IN
overall_length5.000 INCHES NOMINAL IN
mounting_hole_diameter0.281 INCHES NOMINAL IN
mounting_hole_quantity2
end_item_identificationNSN 3990-01-444-6174 BITUM DISTRIBUTOR
part_name_assigned_by_controlling_agencyBRACKET SUPPORT, BUTTERFLY VALVE LEVER
NSN5340-01-540-8810
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4HB940 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
•
MOUNTING HOLE QUANTITY: 2
•
MOUNTING HOLE DIAMETER: 0.281 INCHES NOMINAL IN
•
MATERIAL: STEEL
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY2
OVERALL HEIGHT3.250 INCHES NOMINAL IN
MOUNTING HOLE DIAMETER0.281 INCHES NOMINAL IN
OVERALL LENGTH5.000 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBRACKET SUPPORT, BUTTERFLY VALVE LEVER
END ITEM IDENTIFICATIONNSN 3990-01-444-6174 BITUM DISTRIBUTOR
MATERIALSTEEL
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 4HB940?
4HB940 is a BRACKET,MOUNTING.
What is the NSN for 4HB940?
4HB940 is cataloged in the U.S. Government catalog under NSN 5340-01-540-8810. 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.