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0078908-1 — BOOT,DUST AND MOISTURE SEAL

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

0078908-1: BOOT,DUST AND MOISTURE SEAL.

The BOOT,DUST AND MOISTURE SEAL is a the manufacturer industrial component. Key specifications include material: RUBBER SYNTHETIC BODY, body_height: 3.625 INCHES NOMINAL IN, overall_height: 4.063 INCHES NOMINAL IN, sealing_method: MECHANICAL, mounting_method: FRICTION, style_designator: THRU-HOLE, EXPANDABLE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-355-0095, 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
0078908-1
NSN: 5340-00-355-0095
FSC: 5340 — Hardware, Commercial
CAGE: 89926 — NEW HOLLAND CONSTRUCTION (USA)
SPECIFICATIONS
materialRUBBER SYNTHETIC BODY
body_height3.625 INCHES NOMINAL IN
overall_height4.063 INCHES NOMINAL IN
sealing_methodMECHANICAL
mounting_methodFRICTION
style_designatorTHRU-HOLE, EXPANDABLE
material_thickness0.047 INCHES NOMINAL IN
fsc_application_dataBRAKE,SHOE TYPE,VEHICULAR
base_outside_diameter2.250 INCHES NOMINAL IN
body_outside_diameter1.250 INCHES NOMINAL IN
opening_inside_diameter0.438 INCHES NOMINAL IN
NSN5340-00-355-0095
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 0078908-1 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
•
FSC APPLICATION DATA: BRAKE,SHOE TYPE,VEHICULAR
•
SEALING METHOD: MECHANICAL
•
OPENING INSIDE DIAMETER: 0.438 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.250 INCHES NOMINAL IN
•
MOUNTING METHOD: FRICTION
•
BODY HEIGHT: 3.625 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE, EXPANDABLE
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT4.063 INCHES NOMINAL IN
FSC APPLICATION DATABRAKE,SHOE TYPE,VEHICULAR
SEALING METHODMECHANICAL
OPENING INSIDE DIAMETER0.438 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.250 INCHES NOMINAL IN
MOUNTING METHODFRICTION
BODY HEIGHT3.625 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE, EXPANDABLE
MATERIAL THICKNESS0.047 INCHES NOMINAL IN
BASE OUTSIDE DIAMETER2.250 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 3
0051574Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
0078908Reference document
Same NSN cross-reference
Reference document — Secondary reference
051574Reference document
Same NSN cross-reference
Reference document — Secondary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 0078908-1?
0078908-1 is a BOOT,DUST AND MOISTURE SEAL.
What parts can replace 0078908-1?
There are 3 known substitutes for 0078908-1: 0051574, 0078908, 051574. Substitute compatibility should be verified for your specific system.
What is the NSN for 0078908-1?
0078908-1 is cataloged in the U.S. Government catalog under NSN 5340-00-355-0095. 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.