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Technical Data Sheet
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178672 — PUMP,ROTARY

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

178672: PUMP,ROTARY.

The PUMP,ROTARY is a the manufacturer industrial component. Key specifications include end_item_identification: END ITEM APPLICATION 19303922981. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-446-7434, 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
178672
NSN: 5340-00-446-7434
NIINs: 004467434, 005061239
FSC: 5340 — Hardware, Commercial
CAGE: 92392 — ALLIS-CHALMERS CORP (USA)
SPECIFICATIONS
end_item_identificationEND ITEM APPLICATION 19303922981
NSN5340-00-446-7434
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 178672 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
•
SEALING METHOD: MECHANICAL
•
OPENING INSIDE DIAMETER: 0.813 INCHES NOMINAL IN
•
BODY OUTSIDE DIAMETER: 1.875 INCHES NOMINAL IN
•
MOUNTING METHOD: FRICTION
•
BODY HEIGHT: 0.453 INCHES NOMINAL IN
•
STYLE DESIGNATOR: THRU-HOLE
•
MATERIAL THICKNESS: 0.063 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
OVERALL HEIGHT0.453 INCHES NOMINAL IN
SEALING METHODMECHANICAL
OPENING INSIDE DIAMETER0.813 INCHES NOMINAL IN
BODY OUTSIDE DIAMETER1.875 INCHES NOMINAL IN
MOUNTING METHODFRICTION
BODY HEIGHT0.453 INCHES NOMINAL IN
STYLE DESIGNATORTHRU-HOLE
MATERIAL THICKNESS0.063 INCHES NOMINAL IN
MATERIALRUBBER SILICONE BODY
SUBSTITUTES & CROSS-REFERENCES 1
988471Reference 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 178672?
178672 is a PUMP,ROTARY.
What parts can replace 178672?
There is 1 known substitute for 178672: 988471. Substitute compatibility should be verified for your specific system.
What is the NSN for 178672?
178672 is cataloged in the U.S. Government catalog under NSN 5340-00-446-7434. 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.