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8AM4-316 — ADAPTER,STRAIGHT,PIPE TO TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

8AM4-316: ADAPTER,STRAIGHT,PIPE TO TUBE.

The ADAPTER,STRAIGHT,PIPE TO TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, surface_treatment: LUBRICANT OVERALL, nominal_overall_length: 1.747 INCHES IN, nominal_pipe_size_accommodated: 0.540 INCHES SECOND END IN, part_name_assigned_by_controlling_agency: ADAPTER MALE,TUBE TO PIPE,1/2 INCH TUBE AND 1/4 INCH NPT IN, nominal_outside_diameter_tube_accommodated: 0.501 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-522-2581, 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
8AM4-316
NSN: 4730-01-522-2581
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
surface_treatmentLUBRICANT OVERALL
nominal_overall_length1.747 INCHES IN
nominal_pipe_size_accommodated0.540 INCHES SECOND END IN
part_name_assigned_by_controlling_agencyADAPTER MALE,TUBE TO PIPE,1/2 INCH TUBE AND 1/4 INCH NPT IN
nominal_outside_diameter_tube_accommodated0.501 INCHES FIRST END IN
NSN4730-01-522-2581
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 8AM4-316 · 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 PIPE SIZE ACCOMMODATED: 0.540 INCHES SECOND END IN
•
NOMINAL OVERALL LENGTH: 1.747 INCHES IN
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.501 INCHES FIRST END IN
•
SURFACE TREATMENT: LUBRICANT OVERALL
•
MATERIAL: STEEL COMP 316 OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.540 INCHES SECOND END IN
NOMINAL OVERALL LENGTH1.747 INCHES IN
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.501 INCHES FIRST END IN
SURFACE TREATMENTLUBRICANT OVERALL
PART NAME ASSIGNED BY CONTROLLING AGENCYADAPTER MALE,TUBE TO PIPE,1/2 INCH TUBE AND 1/4 INCH NPT IN
MATERIALSTEEL COMP 316 OVERALL
OTHER ITEMS IN FSC 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Items in the same Federal Supply class. No interchangeability or substitution relationship is implied.
4730-00-000-1895 4730-00-000-4289 4730-00-000-4445 4730-00-000-8373 4730-00-000-8897 4730-00-001-0007 4730-00-001-0008
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 8AM4-316?
8AM4-316 is a ADAPTER,STRAIGHT,PIPE TO TUBE.
What is the NSN for 8AM4-316?
8AM4-316 is cataloged in the U.S. Government catalog under NSN 4730-01-522-2581. 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.