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3N351 — STRAINER,SEDIMENT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

3N351: STRAINER,SEDIMENT.

The STRAINER,SEDIMENT is a the manufacturer industrial component. Key specifications include phase: THREE INPUT, power_rating: 31.0 WATTS OUTPUT, end_item_identification: LOGISTICS SUPPORT VESSEL, connection_type_and_voltage_rating_in_volts: 440.0 LINE TO NEUTRAL SINGLE INPUT. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-180-2074, 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
3N351
NSN: 4730-01-180-2074
NIINs: 011802074, 013321860
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 54370 — ALFA LAVAL INC. (USA)
SPECIFICATIONS
phaseTHREE INPUT
power_rating31.0 WATTS OUTPUT
end_item_identificationLOGISTICS SUPPORT VESSEL
connection_type_and_voltage_rating_in_volts440.0 LINE TO NEUTRAL SINGLE INPUT
NSN4730-01-180-2074
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 3N351 · OEM ⚠ VERIFY BEFORE ORDERING NPT ≠ BSPT — tapered threads look identical but are NOT interchangeable. Wrong thread = leak. JIC (37°) ≠ AN (37°) ≠ SAE 45° — flare angles must match exactly. Measure thread pitch with gauge — visual identification is unreliable ✓ BROKER TIP Always use thread sealant (PTFE tape or pipe compound) on tapered threads (NPT/BSPT). JIC/AN flare fittings seal metal-to-metal — never use tape on flare connections PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
MOUNTING HOLE QUANTITY: 4
•
DISTANCE FROM BOTTOM OF BODY TO CENTER OF INLET: 6.562 INCHES NOMINAL IN
•
FIRST INTAKE FLANGE THICKNESS: 0.437 INCHES NOMINAL IN
•
FIRST INTAKE FLANGE OUTSIDE DIAMETER: 4.625 INCHES NOMINAL IN
•
FIRST INTAKE CONNECTION TYPE: RAISED FACE FLANGE LINE
•
STYLE DESIGNATOR: Y STRAINER W/THREADED COVER
•
MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-15083 MIL SPEC 1ST MATERIAL RESPONSE BODY
•
MOUNTING HOLE DIAMETER: 0.625 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS
MOUNTING HOLE QUANTITY4
DISTANCE FROM BOTTOM OF BODY TO CENTER OF INLET6.562 INCHES NOMINAL IN
FIRST INTAKE FLANGE THICKNESS0.437 INCHES NOMINAL IN
FIRST INTAKE FLANGE OUTSIDE DIAMETER4.625 INCHES NOMINAL IN
FIRST INTAKE CONNECTION TYPERAISED FACE FLANGE LINE
STYLE DESIGNATORY STRAINER W/THREADED COVER
MATERIAL DOCUMENT AND CLASSIFICATIONMIL-S-15083 MIL SPEC 1ST MATERIAL RESPONSE BODY
MOUNTING HOLE DIAMETER0.625 INCHES NOMINAL IN
FIRST INTAKE FLANGE SHAPE STYLEROUND W/UNTHREADED BOLT HOLES
BODY LENGTH9.500 INCHES NOMINAL IN
SUBSTITUTES & CROSS-REFERENCES 4
3N351PIECE91Reference document
Same NSN cross-reference
Reference document — Secondary reference
7344FSame NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
AC14202-0001Reference document
Same NSN cross-reference
Reference document — Secondary reference
AC14202-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
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 3N351?
3N351 is a STRAINER,SEDIMENT.
What parts can replace 3N351?
There are 4 known substitutes for 3N351: 3N351PIECE91, 7344F, AC14202-0001 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 3N351?
3N351 is cataloged in the U.S. Government catalog under NSN 4730-01-180-2074. 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.