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Technical Data Sheet
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331908 — BUSHING,RETAINER

✓ Government record, cited
— · ORING SEAL
PRODUCT OVERVIEW

331908: BUSHING,RETAINER.

The BUSHING,RETAINER is a the manufacturer industrial component. Key specifications include end_item_identification: 29156296470, general_characteristics_item_description: CRES AMS 5640,PASSIVATED,0.9919 IN. MIN 1.000 IN.

MAX DIA,0.345 IN. MIN 0.347 IN. MAX W,1.000-20 UNEF-3A THD A.

This part is cataloged in the U.S. Government catalog under NSN 5330-00-337-0064, 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
331908
NSN: 5330-00-337-0064
NIINs: 003370064, 005655295
FSC: 5330 — Packing and Gasket Materials
CAGE: 07524 — DOVER PUMPS & PROCESS SOLUTIONS SEGMENT INC DBA BLACKMER DIV BLACKMER (USA)
SPECIFICATIONS
end_item_identification29156296470
general_characteristics_item_descriptionCRES AMS 5640,PASSIVATED,0.9919 IN. MIN 1.000 IN. MAX DIA,0.345 IN. MIN 0.347 IN. MAX W,1.000-20 UNEF-3A THD A
NSN5330-00-337-0064
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 331908 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
•
SEAL WIDTH: 0.250 INCHES NOMINAL IN
•
HOUSING BORE DIAMETER: 2.000 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: SINGLE LIP
•
ACCOMMODATED SHAFT DIAMETER: 1.500 INCHES NOMINAL IN
•
MATERIAL: STEEL SPREADER
•
CONSTRUCTION: SOLID
TECHNICAL CHARACTERISTICS
SEAL WIDTH0.250 INCHES NOMINAL IN
HOUSING BORE DIAMETER2.000 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLESINGLE LIP
ACCOMMODATED SHAFT DIAMETER1.500 INCHES NOMINAL IN
MATERIALSTEEL SPREADER
CONSTRUCTIONSOLID
SUBSTITUTES & CROSS-REFERENCES 1
18244Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 331908?
331908 is a BUSHING,RETAINER.
What parts can replace 331908?
There is 1 known substitute for 331908: 18244. Substitute compatibility should be verified for your specific system.
What is the NSN for 331908?
331908 is cataloged in the U.S. Government catalog under NSN 5330-00-337-0064. 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.