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Technical Data Sheet
PartsTable / COMPONENT / 1655822PC6
1655822PC6 ✓ 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

CAP ASSEMBLY,PROTECTIVE,MUFFLER-. Key specifications include material: STEEL OVERALL, flow_angle: 45.0 DEGREES, leg_length: 1.219 INCHES NOMINAL SECOND END IN, thread_class: 2A FIRST END A, connection_type: THREADED EXTERNAL PIPE SECOND END, connection_style: GASKET SEAL, COMPRESSION (TUBE) FIRST END. This product is currently in active production with full OEM support.

This part is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-677-2565, 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
1655822PC6
NSN: 4730-00-677-2565
FSC: 4730
CAGE: 10001 — NAVAIR AND NAVSEA MANAGED ORIGINAL DESIGN ACTIVITY DWG NOT MATERIAL/PARTS SUPPLIER (USA)
SPECIFICATIONS
materialSTEEL OVERALL
flow_angle45.0 DEGREES
leg_length1.219 INCHES NOMINAL SECOND END IN
thread_class2A FIRST END A
connection_typeTHREADED EXTERNAL PIPE SECOND END
connection_styleGASKET SEAL, COMPRESSION (TUBE) FIRST END
surface_treatmentPHOSPHATE OUTSIDE
nominal_thread_size1.125 INCHES FIRST END IN
thread_series_designatorUNF FIRST END
furnished_items_and_quantity1 PREFORMED PACKING
material_document_and_classificationFED STD 66,COMP C1118 FED STD SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated0.750 INCHES FIRST END IN
NSN4730-00-677-2565
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 1655822PC6 · 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
•
MATERIAL DOCUMENT AND CLASSIFICATION: FED STD 66,COMP C1118 FED STD SINGLE MATERIAL RESPONSE OVERALL
•
CONNECTION TYPE: THREADED EXTERNAL PIPE SECOND END
•
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 0.750 INCHES FIRST END IN
•
THREAD SERIES DESIGNATOR: NPTF SECOND END
•
SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-C-16232,TY Z,CL 4C MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
•
THREAD CLASS: 2A FIRST END A
•
NOMINAL THREAD SIZE: 1.125 INCHES FIRST END IN
TECHNICAL CHARACTERISTICS (FLIS)
MATERIAL DOCUMENT AND CLASSIFICATIONFED STD 66,COMP C1118 FED STD SINGLE MATERIAL RESPONSE OVERALL
CONNECTION TYPETHREADED EXTERNAL PIPE SECOND END
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED0.750 INCHES FIRST END IN
THREAD SERIES DESIGNATORNPTF SECOND END
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-16232,TY Z,CL 4C MIL SPEC SINGLE TREATMENT RESPONSE OUTSIDE
THREAD CLASS2A FIRST END A
SURFACE TREATMENT DOCUMENT AND CLASSIFICATIONMIL-C-16232,TY Z,CL 4C MIL SPEC SINGLE TREATMENT RESPONSE INSIDE
NOMINAL THREAD SIZE1.125 INCHES FIRST END IN
SURFACE TREATMENTPHOSPHATE INSIDE
FLOW ANGLE45.0 DEGREES
VERIFIED SUBSTITUTES & CROSS-REFERENCES 4
AS59158Interchangeable
interchangeable cross-reference
interchangeable
3551-2Interchangeable
interchangeable cross-reference
interchangeable
28-2093-2Interchangeable
interchangeable cross-reference
interchangeable
213998M1Interchangeable
interchangeable cross-reference
interchangeable
LIFECYCLE
StatusACTIVE
AvailabilityOEM and secondary market
RoHS CompliantEAR99Not HAZMAT
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FREQUENTLY ASKED QUESTIONS
What is 1655822PC6?
1655822PC6 is a CAP ASSEMBLY,PROTECTIVE,MUFFLER-.
What parts can replace 1655822PC6?
There are 4 known substitutes for 1655822PC6: AS59158, 3551-2, 28-2093-2 and 1 more. Substitute compatibility should be verified for your specific system.
What is the NSN for 1655822PC6?
1655822PC6 is cataloged in the Federal Logistics Information System (FLIS) under NSN 4730-00-677-2565. 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