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ISST4AN4MC — REDUCER,PIPE

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

ISST4AN4MC: REDUCER,PIPE.

The REDUCER,PIPE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 316 OVERALL, seat_angle: 37.1 DEGREES FIRST END, connection_type: THREADED EXTERNAL PIPE ALL ENDS, connection_style: PLAIN (PIPE) ALL ENDS, style_designator: FLARED AND FLARELESS W/ BULKHEAD THREAD, nominal_thread_size: 0.4375 INCHES FIRST END IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-702-6990, 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
ISST4AN4MC
NSN: 4730-01-702-6990
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 79926 — SSP FITTINGS CORP (USA)
SPECIFICATIONS
materialSTEEL COMP 316 OVERALL
seat_angle37.1 DEGREES FIRST END
connection_typeTHREADED EXTERNAL PIPE ALL ENDS
connection_stylePLAIN (PIPE) ALL ENDS
style_designatorFLARED AND FLARELESS W/ BULKHEAD THREAD
nominal_thread_size0.4375 INCHES FIRST END IN
nominal_overall_length1.42 INCHES IN
media_for_which_designedFLUID SINGLE RESPONSE
thread_quantity_per_inchA20 FIRST END
thread_series_designatorANPT FIRST END
nominal_pipe_size_accommodated0.4375 INCHES FIRST END IN
part_name_assigned_by_controlling_agencyMALE AN TO MALE PIPE THREAD
NSN4730-01-702-6990
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: ISST4AN4MC · 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: 0.4375 INCHES FIRST END IN
•
CONNECTION STYLE: PLAIN (PIPE) ALL ENDS
•
NOMINAL OVERALL LENGTH: 1.42 INCHES IN
•
CONNECTION TYPE: THREADED EXTERNAL PIPE ALL ENDS
•
STYLE DESIGNATOR: FLARED AND FLARELESS W/ BULKHEAD THREAD
•
NOMINAL THREAD SIZE: 0.4375 INCHES FIRST END IN
•
SEAT ANGLE: 37.1 DEGREES FIRST END
TECHNICAL CHARACTERISTICS
NOMINAL PIPE SIZE ACCOMMODATED0.4375 INCHES FIRST END IN
NOMINAL PIPE SIZE ACCOMMODATED0.250 INCHES SECOND END IN
CONNECTION STYLEPLAIN (PIPE) ALL ENDS
NOMINAL OVERALL LENGTH1.42 INCHES IN
CONNECTION TYPETHREADED EXTERNAL PIPE ALL ENDS
STYLE DESIGNATORFLARED AND FLARELESS W/ BULKHEAD THREAD
NOMINAL THREAD SIZE0.4375 INCHES FIRST END IN
SEAT ANGLE37.1 DEGREES FIRST END
MEDIA FOR WHICH DESIGNEDFLUID SINGLE RESPONSE
PART NAME ASSIGNED BY CONTROLLING AGENCYMALE AN TO MALE PIPE THREAD
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
Acquisition advice: Normally procured from the manufacturer (OEM)No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is ISST4AN4MC?
ISST4AN4MC is a REDUCER,PIPE.
What is the NSN for ISST4AN4MC?
ISST4AN4MC is cataloged in the U.S. Government catalog under NSN 4730-01-702-6990. This indicates validated use in U.S. government and defense supply chains.
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