PartsTable / COMPONENT / 1721B
1721B
✓ 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 MOUNT,TRIPOD,MACHINE GUN is a the manufacturer industrial component. Key specifications include valve_operation_method: AUTOMATIC. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-460-3869, 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
1721B
NSN: 4730-00-460-3869 FSC: 4730 CAGE: 95879 — STEWART-WARNER ALEMITE CORP (USA)
SPECIFICATIONS
valve_operation_method AUTOMATIC NSN 4730-00-460-3869
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL
END A: —
STRAIGHT
END B: —
SPECIFICATIONS
Thread: —
Material: —
Pressure: —
PN: 1721B · 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
• HEIGHT: 0.875 INCHES NOMINAL IN
• ASSEMBLY CLEARANCE RADIUS: 0.344 INCHES NOMINAL IN
• SURFACE TREATMENT: ZINC OVERALL
• SHANK LENGTH: 0.203 INCHES NOMINAL IN
TECHNICAL CHARACTERISTICS (FLIS)
HEIGHT 0.875 INCHES NOMINAL IN SPECIAL FEATURES SELF-TAPPING SPECIAL TAPERE D DRIVE THD FOR 0.373 IN. TO 0.38 0 IN. HOLE SIZE,AND SURFACE LOCAT ED BALL CHECK VALVE IN ANGLE 30.0 DEGREES ASSEMBLY CLEARANCE RADIUS 0.344 INCHES NOMINAL IN STYLE DESIGNATOR ANGLE MATERIAL STEEL OVERALL SURFACE TREATMENT ZINC OVERALL SHANK LENGTH 0.203 INCHES NOMINAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 22
145434 Interchangeable interchangeable cross-reference
interchangeable
43716 Interchangeable interchangeable cross-reference
interchangeable
J534 Interchangeable interchangeable cross-reference
interchangeable
4730002784216 Interchangeable interchangeable cross-reference
interchangeable
212559PC72 Interchangeable interchangeable cross-reference
interchangeable
SP75176 Interchangeable interchangeable cross-reference
interchangeable
LIFECYCLE
Status CANCELLED
Availability —
RoHS Compliant EAR99 Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1721B?
1721B is a MOUNT,TRIPOD,MACHINE GUN.
What parts can replace 1721B?
There are 22 known substitutes for 1721B: 145434, 43716, J534 and 19 more. Substitute compatibility should be verified for your specific system.
Is 1721B still available?
1721B is currently cancelled.