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Technical Data Sheet
PartsTable / COMPONENT / 04-21034
04-21034 ✓ 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 ELBOW,PIPE is a the manufacturer industrial component. Key specifications include flange_shape: HEXAGON ALL ENDS, connection_type: UNTHREADED INTERNAL PIPE ALL ENDS, nominal_width_across_flats: 71.4 MILLIMETERS SECOND END MM, part_name_assigned_by_controlling_agency: RELIEF, STRAIN. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-728-1877, 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
04-21034
NSN: 4730-01-728-1877
FSC: 4730
CAGE: 30554 — DEPARTMENT OF DEFENSE PROJECT MANAGER-MOBILE ELECTRIC POWER (USA)
SPECIFICATIONS
flange_shapeHEXAGON ALL ENDS
connection_typeUNTHREADED INTERNAL PIPE ALL ENDS
nominal_width_across_flats71.4 MILLIMETERS SECOND END MM
part_name_assigned_by_controlling_agencyRELIEF, STRAIN
NSN4730-01-728-1877
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 04-21034 · 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
•
NOMINAL WIDTH ACROSS FLATS: 71.4 MILLIMETERS SECOND END MM
•
FLANGE SHAPE: HEXAGON ALL ENDS
•
CONNECTION TYPE: UNTHREADED INTERNAL PIPE ALL ENDS
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL WIDTH ACROSS FLATS71.4 MILLIMETERS SECOND END MM
PART NAME ASSIGNED BY CONTROLLING AGENCYRELIEF, STRAIN
FLANGE SHAPEHEXAGON ALL ENDS
CONNECTION TYPEUNTHREADED INTERNAL PIPE ALL ENDS
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
65X2175Interchangeable
interchangeable cross-reference
interchangeable
AN1-4-1701-160PC16Interchangeable
interchangeable cross-reference
interchangeable
827976Interchangeable
interchangeable cross-reference
interchangeable
4003Interchangeable
interchangeable cross-reference
interchangeable
77160HInterchangeable
interchangeable cross-reference
interchangeable
2B5903Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 04-21034?
04-21034 is a ELBOW,PIPE.
What parts can replace 04-21034?
There are 22 known substitutes for 04-21034: 65X2175, AN1-4-1701-160PC16, 827976 and 19 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 04-21034?
04-21034 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-728-1877. 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