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68646 PIECE 12 ✓ 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 FLANGE,PIPE,SWIVEL RETAINING is a the manufacturer industrial component. Key specifications include material: STEEL OVERALL, design_type: NONREUSABLE, body_diameter: 3.047 INCHES NOMINAL IN, flow_direction: OUTSIDE IN, style_designator: RADIAL, thread_direction: RIGHT-HAND. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-312-5625, 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
68646 PIECE 12
NSN: 4730-01-312-5625
FSC: 4730
CAGE: 48422 — WILLIAM POWELL COMPANY, THE DBA POWELL VALVE DIV THE STARFLO CORPORATION (USA)
SPECIFICATIONS
materialSTEEL OVERALL
design_typeNONREUSABLE
body_diameter3.047 INCHES NOMINAL IN
flow_directionOUTSIDE IN
segment_quantity4
special_featuresNIOSH APPROVAL NO. TC-23C-604; SOLE SOURCE REQUIRED BY STATUTE 6.302; USED ON AMERICAN OPTICAL EXCAPE ARTIST MOUTHPIECE RESPIRATORS
style_designatorRADIAL
thread_directionRIGHT-HAND
body_overall_length5.656 INCHES NOMINAL IN
body_inside_diameter1.078 INCHES NOMINAL IN
punched_hole_diameter0.172 INCHES NOMINAL IN
filtering_media_designPLEATED SINGLE FILTERING MEDIA RESPONSE
NSN4730-01-312-5625
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 68646 PIECE 12 · 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
VERIFIED SUBSTITUTES & CROSS-REFERENCES 15
PT-480-10Interchangeable
interchangeable cross-reference
interchangeable
51420Interchangeable
interchangeable cross-reference
interchangeable
1420Interchangeable
interchangeable cross-reference
interchangeable
MIL-D-4562Interchangeable
interchangeable cross-reference
interchangeable
A-A-50695Interchangeable
interchangeable cross-reference
interchangeable
147 SIZE 5Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 68646 PIECE 12?
68646 PIECE 12 is a FLANGE,PIPE,SWIVEL RETAINING.
What parts can replace 68646 PIECE 12?
There are 15 known substitutes for 68646 PIECE 12: PT-480-10, 51420, 1420 and 12 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 68646 PIECE 12?
68646 PIECE 12 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-01-312-5625. This indicates validated use in U.S. government and defense supply chains.
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✓ Validated with multiple authoritative sources, including Government, OEM, and Certified sources.
PartsTable Design LLC · partstable.com
Last verified: July 2026