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4HB961 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

4HB961: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: COTTON BODY, overall_height: 7.000 INCHES NOMINAL IN, style_designator: THRU-HOLE, base_inside_diameter: 5.875 INCHES NOMINAL IN, end_item_identification: 3990-01-444-6174 BITUM DISTRIBUTOR, opening_inside_diameter: 3.312 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 5340-01-541-5331, 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
4HB961
NSN: 5340-01-541-5331
FSC: 5340 — Hardware, Commercial
CAGE: 75Q65 — OSHKOSH DEFENSE LLC (USA)
SPECIFICATIONS
materialCOTTON BODY
overall_height7.000 INCHES NOMINAL IN
style_designatorTHRU-HOLE
base_inside_diameter5.875 INCHES NOMINAL IN
supplementary_featuresMAT OVERLAP IS MIN OF 5/8 INCHES AND MAX OF 3/4 INCHES, TOP IS 66 DEGREES CURVE, TOP IS RADUS OF 9 1/16 AND BOTTOM RADUS IS 16 1/16 IN
end_item_identification3990-01-444-6174 BITUM DISTRIBUTOR
opening_inside_diameter3.312 INCHES NOMINAL IN
part_name_assigned_by_controlling_agencyBOOT-BALL JOINT COVER
NSN5340-01-541-5331
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 4HB961 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
•
OPENING INSIDE DIAMETER: 3.312 INCHES NOMINAL IN
•
SUPPLEMENTARY FEATURES: MAT OVERLAP IS MIN OF 5/8 INCHES AND MAX OF 3/4 INCHES, TOP IS 66 DEGREES CURVE, TOP IS RADUS OF 9 1/16 AND BOTTOM RADUS IS 16 1/16 IN
•
STYLE DESIGNATOR: THRU-HOLE
•
BASE INSIDE DIAMETER: 5.875 INCHES NOMINAL IN
•
MATERIAL: COTTON BODY
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT7.000 INCHES NOMINAL IN
OPENING INSIDE DIAMETER3.312 INCHES NOMINAL IN
SUPPLEMENTARY FEATURESMAT OVERLAP IS MIN OF 5/8 INCHES AND MAX OF 3/4 INCHES, TOP IS 66 DEGREES CURVE, TOP IS RADUS OF 9 1/16 AND BOTTOM RADUS IS 16 1/16 IN
STYLE DESIGNATORTHRU-HOLE
BASE INSIDE DIAMETER5.875 INCHES NOMINAL IN
PART NAME ASSIGNED BY CONTROLLING AGENCYBOOT-BALL JOINT COVER
END ITEM IDENTIFICATION3990-01-444-6174 BITUM DISTRIBUTOR
MATERIALCOTTON BODY
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 4HB961?
4HB961 is a BOOT,DUST AND MOISTURE SEAL.
What is the NSN for 4HB961?
4HB961 is cataloged in the U.S. Government catalog under NSN 5340-01-541-5331. This indicates validated use in U.S. government and defense supply chains.
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