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12BU316MM — UNION,TUBE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

12BU316MM: UNION,TUBE.

The UNION,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL STAINLESS - USE STB000 OVERALL, nominal_width: 22.2 MILLIMETERS ALL ENDS MM, nominal_length: 74.7 MILLIMETERS ALL ENDS MM, special_features: 22.2 HEX FLAT,23.8 HEX FLAT, nominal_outside_diameter: 12.0 MILLIMETERS ALL ENDS MM, part_name_assigned_by_controlling_agency: BULKHEAD UNION. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-666-7289, 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
12BU316MM
NSN: 4730-01-666-7289
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 28968 — CIRCOR INSTRUMENTATION TECHNOLOGIES, INC. DBA HOKE GYROLOK (USA)
SPECIFICATIONS
materialSTEEL STAINLESS - USE STB000 OVERALL
nominal_width22.2 MILLIMETERS ALL ENDS MM
nominal_length74.7 MILLIMETERS ALL ENDS MM
special_features22.2 HEX FLAT,23.8 HEX FLAT
nominal_outside_diameter12.0 MILLIMETERS ALL ENDS MM
part_name_assigned_by_controlling_agencyBULKHEAD UNION
NSN4730-01-666-7289
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 12BU316MM · 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 LENGTH: 74.7 MILLIMETERS ALL ENDS MM
•
NOMINAL OUTSIDE DIAMETER: 12.0 MILLIMETERS ALL ENDS MM
•
NOMINAL WIDTH: 22.2 MILLIMETERS ALL ENDS MM
•
MATERIAL: STEEL STAINLESS - USE STB000 OVERALL
TECHNICAL CHARACTERISTICS
NOMINAL LENGTH74.7 MILLIMETERS ALL ENDS MM
NOMINAL OUTSIDE DIAMETER12.0 MILLIMETERS ALL ENDS MM
SPECIAL FEATURES22.2 HEX FLAT,23.8 HEX FLAT
NOMINAL WIDTH22.2 MILLIMETERS ALL ENDS MM
PART NAME ASSIGNED BY CONTROLLING AGENCYBULKHEAD UNION
MATERIALSTEEL STAINLESS - USE STB000 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 1
M0010A0008Same NSN cross-reference
Same NSN cross-reference
Also cataloged under this NSN
LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is 12BU316MM?
12BU316MM is a UNION,TUBE.
What parts can replace 12BU316MM?
There is 1 known substitute for 12BU316MM: M0010A0008. Substitute compatibility should be verified for your specific system.
What is the NSN for 12BU316MM?
12BU316MM is cataloged in the U.S. Government catalog under NSN 4730-01-666-7289. This indicates validated use in U.S. government and defense supply chains.
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