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221-1337 — Technical Data Sheet

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— · 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 CIRCUIT CARD ASSEMBLY is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, connection_type: THREADED INTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: THREADED INTERNAL, operating_pressure: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS, nominal_thread_size: 0.375 INCHES ALL ENDS IN. This part is cataloged in the Federal Logistics Information System under NSN 4730-00-273-6057, 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
221-1337
NSN: 4730-00-273-6057
FSC: 4730
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL OVERALL
connection_typeTHREADED INTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorTHREADED INTERNAL
operating_pressure150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
nominal_thread_size0.375 INCHES ALL ENDS IN
maximum_operating_temp65.6 FAHRENHEIT SECOND RESPONSE DEGF
nominal_overall_length1.187 INCHES IN
end_item_identificationLOADER,SCOOP TYPE,21/2 CU. YD.,J.I. CASE MODEL MW24B,MW24; HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
media_for_which_designedSTEAM FIRST RESPONSE
thread_series_designatorNPSC ALL ENDS
nondefinitive_spec/std_data1 TYPE
NSN4730-00-273-6057
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 221-1337 · 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
•
CONNECTION TYPE: THREADED INTERNAL PIPE ALL ENDS
•
SPECIFICATION/STANDARD DATA: 81348-WW-P-521 GOVERNMENT SPECIFICATION
•
MATERIAL: STEEL OVERALL
•
NOMINAL THREAD SIZE: 0.375 INCHES ALL ENDS IN
•
OPERATING PRESSURE: 150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
•
NOMINAL OVERALL LENGTH: 1.187 INCHES IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
TECHNICAL CHARACTERISTICS
END ITEM IDENTIFICATIONLOADER,SCOOP TYPE,21/2 CU. YD.,J.I. CASE MODEL MW24B,MW24; HEMTT FAMILY (HEAVY EXPANDED MOBILITY TACTICAL TRUCKS)
CONNECTION TYPETHREADED INTERNAL PIPE ALL ENDS
SPECIFICATION/STANDARD DATA81348-WW-P-521 GOVERNMENT SPECIFICATION
MATERIALSTEEL OVERALL
NOMINAL THREAD SIZE0.375 INCHES ALL ENDS IN
OPERATING PRESSURE150.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM FIRST RESPONSE LBS
NOMINAL OVERALL LENGTH1.187 INCHES IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
STYLE DESIGNATORTHREADED INTERNAL
MEDIA FOR WHICH DESIGNEDWATER-OIL-GAS SECOND RESPONSE
VERIFIED SUBSTITUTES & CROSS-REFERENCES 11
221337InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
924251AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
172-7037InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
A209967PC30InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
61436-247InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
2200-144252REVFInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221-1337?
221-1337 is a CIRCUIT CARD ASSEMBLY.
What parts can replace 221-1337?
There are 11 known substitutes for 221-1337: 221337, 924251A, 172-7037 and 8 more. Substitute compatibility should be verified for your specific system.
Is 221-1337 still available?
221-1337 is currently cancelled.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: September 2026