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ASTM-F437 ✓ 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

RING ASSEMBLY,ELECTRICAL CONTACT. Key specifications include material: PLASTIC OVERALL, nominal_length: 3.000 INCHES ALL ENDS IN, nominal_pipe_size_accommodated: 1.500 INCHES ALL ENDS IN, part_name_assigned_by_controlling_agency: NIPPLE. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-410-3376, 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
ASTM-F437
NSN: 4730-00-410-3376
FSC: 4730
CAGE: 81346 — AMERICAN SOCIETY FOR TESTING AND MATERIALS DBA ASTM INTERNATIONAL (USA)
SPECIFICATIONS
materialPLASTIC OVERALL
nominal_length3.000 INCHES ALL ENDS IN
nominal_pipe_size_accommodated1.500 INCHES ALL ENDS IN
part_name_assigned_by_controlling_agencyNIPPLE
NSN4730-00-410-3376
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ASTM-F437 · 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
•
DRIVE END STYLE: HEXAGON
•
BODY TYPE: CORED
•
MATERIAL: PLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
•
HEAD TYPE: SOLID
•
THREAD SERIES DESIGNATOR: NPT EXTERNAL
•
NOMINAL PIPE SIZE FOR WHICH DESIGNED: 0.500 INCHES IN
•
THREAD DIRECTION: RIGHT-HAND EXTERNAL
•
CONNECTION STYLE: PLAIN
TECHNICAL CHARACTERISTICS (FLIS)
DRIVE END STYLEHEXAGON
BODY TYPECORED
MATERIALPLASTIC POLYVINYL CHLORIDE (PVC) OVERALL
HEAD TYPESOLID
THREAD SERIES DESIGNATORNPT EXTERNAL
NOMINAL PIPE SIZE FOR WHICH DESIGNED0.500 INCHES IN
THREAD DIRECTIONRIGHT-HAND EXTERNAL
CONNECTION STYLEPLAIN
NOMINAL THREAD SIZE0.500 INCHES EXTERNAL IN
VERIFIED SUBSTITUTES & CROSS-REFERENCES 19
05014012Interchangeable
interchangeable cross-reference
interchangeable
4589K47Interchangeable
interchangeable cross-reference
interchangeable
MILP22011Interchangeable
interchangeable cross-reference
interchangeable
3M851EDInterchangeable
interchangeable cross-reference
interchangeable
839-101Interchangeable
interchangeable cross-reference
interchangeable
05032008Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusCANCELLED
Availability—
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is ASTM-F437?
ASTM-F437 is a RING ASSEMBLY,ELECTRICAL CONTACT.
What parts can replace ASTM-F437?
There are 19 known substitutes for ASTM-F437: 05014012, 4589K47, MILP22011 and 16 more. Substitute compatibility should be verified for your specific system.
Is ASTM-F437 still available?
ASTM-F437 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: July 2026