PartsTable
Technical Data Sheet

1/8X21/2 — NIPPLE,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

1/8X21/2: NIPPLE,PIPE.

The NIPPLE,PIPE is a the manufacturer industrial component. Key specifications include part_name_assigned_by_controlling_agency: BOLT HEX HEAD. This part is cataloged in the U.S.

Government catalog under NSN 4730-00-560-4788, 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
1/8X21/2
NSN: 4730-00-560-4788
NIINs: 005604788, 014919720, 016263826
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 88772 — HARSCO CORP DBA CAPITOL MFG (USA)
SPECIFICATIONS
part_name_assigned_by_controlling_agencyBOLT HEX HEAD
NSN4730-00-560-4788
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1/8X21/2 · 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
•
CONNECTION STYLE: PLAIN (PIPE) FIRST END
•
NOMINAL OVERALL LENGTH: 2.500 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE FIRST END
•
STYLE DESIGNATOR: CLOSE
•
MATERIAL DOCUMENT AND CLASSIFICATION: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
NOMINAL THREAD SIZE: 0.125 INCHES FIRST END IN
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
CONNECTION STYLEPLAIN (PIPE) FIRST END
NOMINAL OVERALL LENGTH2.500 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE FIRST END
STYLE DESIGNATORCLOSE
MATERIAL DOCUMENT AND CLASSIFICATION66 FED STD SINGLE MATERIAL RESPONSE OVERALL
NOMINAL THREAD SIZE0.125 INCHES FIRST END IN
SPECIAL FEATURESSCHEDULE 80,SEAMLESS
MATERIALSTEEL COMP 316 OVERALL
THREAD SERIES DESIGNATORNPT FIRST END
SUBSTITUTES & CROSS-REFERENCES 2
NIPPLEPIPE316Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
ASTM-A312Reference document
Same NSN cross-reference
Reference document — Design control — primary reference
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 1/8X21/2?
1/8X21/2 is a NIPPLE,PIPE.
What parts can replace 1/8X21/2?
There are 2 known substitutes for 1/8X21/2: NIPPLEPIPE316, ASTM-A312. Substitute compatibility should be verified for your specific system.
What is the NSN for 1/8X21/2?
1/8X21/2 is cataloged in the U.S. Government catalog under NSN 4730-00-560-4788. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.