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101-1640 — STEM,FLUID VALVE

✓ Government record, cited
3M · ORING SEAL
PRODUCT OVERVIEW

101-1640: STEM,FLUID VALVE.

The STEM,FLUID VALVE is a 3M industrial component. Key specifications include special_features: SPLIT SLEEVE,USED ON MARINE DIESEL ENGINES ON VARIOUS NAVAL VESSELS, part_name_assigned_by_controlling_agency: SPACER,SLEEVE. This part is cataloged in the U.S.

Government catalog under NSN 5340-00-734-8157, 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
101-1640
NSN: 5340-00-734-8157
NIINs: 007348157, 013104295, 016900653
FSC: 5340 — Hardware, Commercial
CAGE: 95201 — NAPCO INTERNATIONAL LLC DBA NAPCO INTERNATIONAL INC (USA)
SPECIFICATIONS
special_featuresSPLIT SLEEVE,USED ON MARINE DIESEL ENGINES ON VARIOUS NAVAL VESSELS
part_name_assigned_by_controlling_agencySPACER,SLEEVE
NSN5340-00-734-8157
COMPONENT DIAGRAM
O-RING / SEAL — MATERIAL DETERMINES APPLICATION ID: — CROSS-SECTION CS: — SPECIFICATION Material: — Durometer: — Temp: — PN: 101-1640 MFR: 3M ⚠ 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 SIZE: 0.406 INCHES NOMINAL IN
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: BW-202-2-P FSCM 76040 MFR REF SINGLE TREATMENT RESPONSE
•
DISTANCE BETWEEN MOUNTING HOLE CENTERS: 2.750 INCHES NOMINAL IN
•
MOUNTING PAD: NOT INCLUDED
•
STYLE DESIGNATOR: CURVED ARCH
•
MATERIAL THICKNESS: 0.188 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE SIZE0.406 INCHES NOMINAL IN
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONBW-202-2-P FSCM 76040 MFR REF SINGLE TREATMENT RESPONSE
DISTANCE BETWEEN MOUNTING HOLE CENTERS2.750 INCHES NOMINAL IN
MOUNTING PADNOT INCLUDED
STYLE DESIGNATORCURVED ARCH
OVERALL LENGTH3.500 INCHES NOMINAL IN
OVERALL WIDTH1.250 INCHES NOMINAL IN
MATERIAL THICKNESS0.188 INCHES NOMINAL IN
CUSHIONNOT INCLUDED
DISTANCE BETWEEN BASE AND INSIDE OF ARCH0.531 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 4
280131Reference document
Same NSN cross-reference
Reference document — Secondary reference
502M5Reference document
Same NSN cross-reference
Reference document — Secondary reference
BB29101Reference document
Same NSN cross-reference
Reference document — Secondary reference
10WCV2Reference document
Same NSN cross-reference
Reference document — Advisory reference — outside the item-of-supply concept
LIFECYCLE
NSN statusCancelled· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 101-1640?
101-1640 is a STEM,FLUID VALVE manufactured by 3M.
What parts can replace 101-1640?
There are 4 known substitutes for 101-1640: 280131, 502M5, BB29101 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 101-1640?
101-1640 is cataloged in the U.S. Government catalog under NSN 5340-00-734-8157. This indicates validated use in U.S. government and defense supply chains.
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