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H-2257 — STRAINER ELEMENT,SEDIMENT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

H-2257: STRAINER ELEMENT,SEDIMENT.

The STRAINER ELEMENT,SEDIMENT is a the manufacturer industrial component. Key specifications include material: STEEL CORROSION RESISTING, element_outside_diameter: 7.750 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-939-8053, 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
H-2257
NSN: 4730-00-939-8053
NIINs: 009398053, 011497863, 011500905, 011503699, 011503700, 011505416, 011512629, 011573540
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 16712 — SIEMENS ENERGY, INC. (USA)
SPECIFICATIONS
materialSTEEL CORROSION RESISTING
element_outside_diameter7.750 INCHES NOMINAL IN
NSN4730-00-939-8053
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: H-2257 · 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
•
ELEMENT OUTSIDE DIAMETER: 7.750 INCHES NOMINAL IN
•
MATERIAL: STEEL CORROSION RESISTING
TECHNICAL CHARACTERISTICS
ELEMENT OUTSIDE DIAMETER7.750 INCHES NOMINAL IN
MATERIALSTEEL CORROSION RESISTING
SUBSTITUTES & CROSS-REFERENCES 4
H2257PC107Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
NM346Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
NM346-1Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
NM346PC1Reference document
Same NSN cross-reference
Reference document — Secondary 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 H-2257?
H-2257 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace H-2257?
There are 4 known substitutes for H-2257: H2257PC107, NM346, NM346-1 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for H-2257?
H-2257 is cataloged in the U.S. Government catalog under NSN 4730-00-939-8053. 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.