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Technical Data Sheet
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2AH556 ✓ 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,SEDIMENT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY SCREENING, body_length: 22.000 INCHES NOMINAL IN, mounting_type: INLET CONNECTION AND OUTLET CONNECTION LINE, special_features: ALUMINUM VICTAULIC EXTENSIONS WELDED TO INLET AND OUTLET ENDS,4 IN. LG AT INLET END,7 IN.

LG AT OUTLET END IN, style_designator: Y STRAINER W/BOLTED COVER, perforation_diameter: 0.062 INCHES NOMINAL IN. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-149-5906, 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
2AH556
NSN: 4730-01-149-5906
FSC: 4730
CAGE: 45152 — OSHKOSH CORP (USA)
SPECIFICATIONS
materialCOPPER ALLOY SCREENING
body_length22.000 INCHES NOMINAL IN
mounting_typeINLET CONNECTION AND OUTLET CONNECTION LINE
special_featuresALUMINUM VICTAULIC EXTENSIONS WELDED TO INLET AND OUTLET ENDS,4 IN. LG AT INLET END,7 IN. LG AT OUTLET END IN
style_designatorY STRAINER W/BOLTED COVER
perforation_diameter0.062 INCHES NOMINAL IN
perforation_quantity100.0 PER SQUARE INCH
filtering_media_designPERFORATED SINGLE FILTERING MEDIA RESPONSE
end_item_identificationHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
media_for_which_designedANY ACCEPTABLE
first_intake_connection_typeSOCKET WELDING LINE
first_intake_nominal_inside_diameter4.000 INCHES IN
NSN4730-01-149-5906
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 2AH556 · 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
•
PERFORATION QUANTITY: 100.0 PER SQUARE INCH
•
BODY LENGTH: 22.000 INCHES NOMINAL IN
•
MEDIA FOR WHICH DESIGNED: ANY ACCEPTABLE
•
MATERIAL: ALUMINUM ALLOY 5052 BODY
•
FIRST INTAKE NOMINAL INSIDE DIAMETER: 4.000 INCHES IN
•
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTION: IDENTICAL TO FIRST INTAKE CONNECTION
TECHNICAL CHARACTERISTICS (FLIS)
PERFORATION QUANTITY100.0 PER SQUARE INCH
SPECIAL FEATURESALUMINUM VICTAULIC EXTENSIONS WELDED TO INLET AND OUTLET ENDS,4 IN. LG AT INLET END,7 IN. LG AT OUTLET END IN
BODY LENGTH22.000 INCHES NOMINAL IN
END ITEM IDENTIFICATIONHEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
MEDIA FOR WHICH DESIGNEDANY ACCEPTABLE
MATERIALALUMINUM ALLOY 5052 BODY
FIRST INTAKE NOMINAL INSIDE DIAMETER4.000 INCHES IN
FIRST DISCHARGE CONNECTION RELATIONSHIP TO INTAKE CONNECTIONIDENTICAL TO FIRST INTAKE CONNECTION
STYLE DESIGNATORY STRAINER W/BOLTED COVER
MOUNTING TYPEINLET CONNECTION AND OUTLET CONNECTION LINE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
45A311-P10Interchangeable
interchangeable cross-reference
interchangeable
45A311-P11Interchangeable
interchangeable cross-reference
interchangeable
7HR589Interchangeable
interchangeable cross-reference
interchangeable
2246640WInterchangeable
Same NIIN cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 2AH556?
2AH556 is a STRAINER,SEDIMENT.
What parts can replace 2AH556?
There are 4 known substitutes for 2AH556: 45A311-P10, 45A311-P11, 7HR589 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 2AH556?
2AH556 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-149-5906. 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