PartsTable
Technical Data Sheet
156/21 ✓ 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 156/21 is a the manufacturer industrial component. This product is currently in active production with full OEM support. This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-166-8315, 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
156/21
NSN: 4730-01-166-8315
FSC: 4730
CAGE: K7018 — WELLMAN GROUP (GBR)
SPECIFICATIONS
Part Number156/21
NSN4730-01-166-8315
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 156/21 · 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 OVERALL LENGTH: 2.000 INCHES IN
MATERIAL: STEEL CORROSION RESISTING OVERALL
TECHNICAL CHARACTERISTICS (FLIS)
NOMINAL OVERALL LENGTH2.000 INCHES IN
END ITEM IDENTIFICATIONLEXAIR INC., COMPRESSOR CO 2 SCRUBBER, MODEL 2-AP-8-BS
MATERIALSTEEL CORROSION RESISTING OVERALL
VERIFIED SUBSTITUTES & CROSS-REFERENCES 14
15621Interchangeable
interchangeable cross-reference
interchangeable
9360Interchangeable
interchangeable cross-reference
interchangeable
ABT9360Interchangeable
interchangeable cross-reference
interchangeable
4748Interchangeable
interchangeable cross-reference
interchangeable
307TN334Interchangeable
interchangeable cross-reference
interchangeable
N1104Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 156/21?
156/21 is a 156/21.
What parts can replace 156/21?
There are 14 known substitutes for 156/21: 15621, 9360, ABT9360 and 11 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 156/21?
156/21 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-166-8315. This indicates validated use in U.S. government and defense supply chains.
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