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251351R91 ✓ Verified by PartsTable
— · HOSE FITTING
WHAT YOU NEED TO KNOW
PTFE tape on tapered threads (NPT/BSPT) JIC/AN flare connections seal metal-to-metal — no tape
NPT != BSPT — look identical, NOT interchangeable
PRODUCT OVERVIEW

The STRAINER ELEMENT,SEDIMENT is a the manufacturer industrial component. Key specifications include length: 1.406 INCHES MINIMUM AND 1.906 INCHES MAXIMUM IN, material: COPPER ALLOY, mesh_size: 60.0, wire_diameter: 0.010 INCHES NOMINAL IN, style_designator: CYLINDRICAL, end_connection_type: FLANGED ALL ENDS. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-355-3295, 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
251351R91
NSN: 4730-00-355-3295
FSC: 4730
CAGE: 92679 — NAVISTAR INTL CORP MELROSE PARK ENGINE PLANT LOCATION /MELROSE PARK/ (USA)
SPECIFICATIONS
length1.406 INCHES MINIMUM AND 1.906 INCHES MAXIMUM IN
materialCOPPER ALLOY
mesh_size60.0
wire_diameter0.010 INCHES NOMINAL IN
special_features1ST END HAS EXTENDED CAP OVER HOLE 0.562 IN. LG BY 0.594 IN. DIA W/FOUR @0.250 IN. DIA HOLES EQUALLY SPACED AROUND CAP IN
style_designatorCYLINDRICAL
end_connection_typeFLANGED ALL ENDS
filtering_media_designMESH
element_outside_diameter1.719 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
first_end_flange_thickness0.031 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
second_end_flange_thickness0.031 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
NSN4730-00-355-3295
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 251351R91 · 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: 1.719 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
•
MESH SIZE: 60.0
•
WIRE DIAMETER: 0.010 INCHES NOMINAL IN
•
END CONNECTION TYPE: FLANGED ALL ENDS
•
SECOND END FLANGE THICKNESS: 0.031 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
•
STYLE DESIGNATOR: CYLINDRICAL
•
LENGTH: 1.406 INCHES MINIMUM AND 1.906 INCHES MAXIMUM IN
TECHNICAL CHARACTERISTICS (FLIS)
ELEMENT OUTSIDE DIAMETER1.719 INCHES MINIMUM AND 1.750 INCHES MAXIMUM IN
MESH SIZE60.0
SPECIAL FEATURES1ST END HAS EXTENDED CAP OVER HOLE 0.562 IN. LG BY 0.594 IN. DIA W/FOUR @0.250 IN. DIA HOLES EQUALLY SPACED AROUND CAP IN
WIRE DIAMETER0.010 INCHES NOMINAL IN
END CONNECTION TYPEFLANGED ALL ENDS
SECOND END FLANGE THICKNESS0.031 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
STYLE DESIGNATORCYLINDRICAL
LENGTH1.406 INCHES MINIMUM AND 1.906 INCHES MAXIMUM IN
FIRST END FLANGE THICKNESS0.031 INCHES NOMINAL LOCATION NOT OTHERWISE SPECIFIED IN
MATERIALCOPPER ALLOY
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
308-1013P2Interchangeable
interchangeable cross-reference
interchangeable
926CInterchangeable
interchangeable cross-reference
interchangeable
S168T1-183DHSInterchangeable
interchangeable cross-reference
interchangeable
93629Interchangeable
interchangeable cross-reference
interchangeable
5962PL2158322Interchangeable
interchangeable cross-reference
interchangeable
LM1900JInterchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 251351R91?
251351R91 is a STRAINER ELEMENT,SEDIMENT.
What parts can replace 251351R91?
There are 11 known substitutes for 251351R91: 308-1013P2, 926C, S168T1-183DHS and 8 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 251351R91?
251351R91 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-355-3295. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026