ST7M257 — COUPLING,TUBE

✓ Government record, cited

— · HOSE FITTING

PRODUCT OVERVIEW

ST7M257: COUPLING,TUBE.

The COUPLING,TUBE is a the manufacturer industrial component. Key specifications include material: STEEL COMP 321 OVERALL, connection_type: UNTHREADED INTERNAL TUBE ALL ENDS, connection_style: SOCKET (TUBE) ALL ENDS, style_designator: PLAIN W/TAPERED ENDS, operating_pressure: 45.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS, maximum_operating_temp: 500.0 FAHRENHEIT SINGLE RESPONSE DEGF. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-070-1775, 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

ST7M257

NSN: 4730-01-070-1775
NIINs: 010701775, 010703393, 012838182
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 76301 — THE BOEING COMPANY DIV DEFENSE (USA)

SPECIFICATIONS

material	STEEL COMP 321 OVERALL
connection_type	UNTHREADED INTERNAL TUBE ALL ENDS
connection_style	SOCKET (TUBE) ALL ENDS
style_designator	PLAIN W/TAPERED ENDS
operating_pressure	45.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
maximum_operating_temp	500.0 FAHRENHEIT SINGLE RESPONSE DEGF
nominal_overall_length	2.062 INCHES IN
material_document_and_classification	MIL-S-6721 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
nominal_outside_diameter_tube_accommodated	4.000 INCHES ALL ENDS IN
NSN	4730-01-070-1775

COMPONENT DIAGRAM

KEY FEATURES

•

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION: MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL

•

CONNECTION STYLE: PLAIN (TUBE) ALL ENDS

•

TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED: 0.035 INCHES ALL ENDS IN

•

NOMINAL OVERALL LENGTH: 3.120 INCHES IN

•

CONNECTION TYPE: UNTHREADED INTERNAL TUBE ALL ENDS

•

STYLE DESIGNATOR: PLAIN W/TAPERED ENDS

•

MATERIAL DOCUMENT AND CLASSIFICATION: MIL-S-6721,TYPE 321 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-T-8808 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL

•

NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED: 5.090 INCHES ALL ENDS IN

TECHNICAL CHARACTERISTICS

SURFACE TREATMENT DOCUMENT AND CLASSIFICATION	MIL-S-5002 MIL SPEC SINGLE TREATMENT RESPONSE OVERALL
CONNECTION STYLE	PLAIN (TUBE) ALL ENDS
TUBING WALL NOMINAL THICKNESS FOR WHICH DESIGNED	0.035 INCHES ALL ENDS IN
NOMINAL OVERALL LENGTH	3.120 INCHES IN
CONNECTION TYPE	UNTHREADED INTERNAL TUBE ALL ENDS
STYLE DESIGNATOR	PLAIN W/TAPERED ENDS
MATERIAL DOCUMENT AND CLASSIFICATION	MIL-S-6721,TYPE 321 MIL SPEC SINGLE MATERIAL RESPONSE OR MIL-T-8808 MIL SPEC SINGLE MATERIAL RESPONSE OVERALL
NOMINAL OUTSIDE DIAMETER TUBE ACCOMMODATED	5.090 INCHES ALL ENDS IN
OPERATING PRESSURE	45.0 POUNDS PER SQUARE INCH (PSI) MAXIMUM SINGLE RESPONSE LBS
MAXIMUM OPERATING TEMP	-65.0 FAHRENHEIT FIRST RESPONSE DEGF

SUBSTITUTES & CROSS-REFERENCES 1

10A347-500-307Same NSN cross-reference

Same NSN cross-reference

Also cataloged under this NSN

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 ST7M257?

ST7M257 is a COUPLING,TUBE.

What parts can replace ST7M257?

There is 1 known substitute for ST7M257: 10A347-500-307. Substitute compatibility should be verified for your specific system.

What is the NSN for ST7M257?

ST7M257 is cataloged in the U.S. Government catalog under NSN 4730-01-070-1775. This indicates validated use in U.S. government and defense supply chains.

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ST7M257 — COUPLING,TUBE

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