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Technical Data Sheet

221-1844 — Technical Data Sheet

✓ 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 PLUG,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 1018 OVERALL, body_type: SOLID, head_type: SOLID, exterior_color: SILVER OVERALL, drive_end_style: RECESSED HEXAGON, connection_style: PLAIN. This part is cataloged in the Federal Logistics Information System under NSN 4730-01-066-0129, 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
221-1844
NSN: 4730-01-066-0129
FSC: 4730
CAGE: 10988 — CNH INDUSTRIAL AMERICA LLC DBA CNH AMERICA (USA)
SPECIFICATIONS
materialSTEEL COMP 1018 OVERALL
body_typeSOLID
head_typeSOLID
exterior_colorSILVER OVERALL
drive_end_styleRECESSED HEXAGON
connection_stylePLAIN
special_featuresROCKWELL HARDNESS C SCALE 26-32
thread_directionRIGHT-HAND EXTERNAL
surface_treatmentCHROMATE ZINC OVERALL
nominal_thread_size0.500 INCHES EXTERNAL IN
thread_series_designatorNPT EXTERNAL
nominal_pipe_size_for_which_designed0.500 INCHES IN
NSN4730-01-066-0129
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 221-1844 · 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
•
MATERIAL: STEEL COMP 1018 OVERALL
•
NOMINAL THREAD SIZE: 0.500 INCHES EXTERNAL IN
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN
•
SURFACE TREATMENT: CHROMATE ZINC OVERALL
•
HEAD TYPE: SOLID
•
CONNECTION STYLE: PLAIN
•
THREAD SERIES DESIGNATOR: NPT EXTERNAL
TECHNICAL CHARACTERISTICS
MATERIALSTEEL COMP 1018 OVERALL
SPECIAL FEATURESROCKWELL HARDNESS C SCALE 26-32
NOMINAL THREAD SIZE0.500 INCHES EXTERNAL IN
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.500 INCHES IN
SURFACE TREATMENTCHROMATE ZINC OVERALL
HEAD TYPESOLID
CONNECTION STYLEPLAIN
THREAD SERIES DESIGNATORNPT EXTERNAL
EXTERIOR COLORSILVER OVERALL
THREAD DIRECTIONRIGHT-HAND EXTERNAL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
1988InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
M970-7InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
1761-07InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
72518InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
3935AInterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
SK205-6InterchangeableGOVERNMENT REGISTRY
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLEDGOVERNMENT REGISTRY
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 221-1844?
221-1844 is a PLUG,PIPE.
What parts can replace 221-1844?
There are 19 known substitutes for 221-1844: 1988, M970-7, 1761-07 and 16 more. Substitute compatibility should be verified for your specific system.
Is 221-1844 still available?
221-1844 is currently cancelled.
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