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M1591 — COVER,TELEPHONE JACK

✓ Government record, cited
— · PIPE SECTION
PRODUCT OVERVIEW

M1591: COVER,TELEPHONE JACK.

The COVER,TELEPHONE JACK is a the manufacturer industrial component. Key specifications include diameter: 0.750 INCHES NOMINAL IN, material: COPPER, body_width: 4.380 INCHES NOMINAL IN, body_height: 3.000 INCHES MAXIMUM IN, body_length: 5.250 INCHES NOMINAL IN, construction: SEAMLESS. This part is cataloged in the U.S.

Government catalog under NSN 4710-01-005-1142, 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
M1591
NSN: 4710-01-005-1142
NIINs: 010051142, 011655359
FSC: 4710 — Pipe, Tube and Rigid Tubing
CAGE: 11568 — GARDNER DENVER INC. (USA)
SPECIFICATIONS
diameter0.750 INCHES NOMINAL IN
materialCOPPER
body_width4.380 INCHES NOMINAL IN
body_height3.000 INCHES MAXIMUM IN
body_length5.250 INCHES NOMINAL IN
constructionSEAMLESS
inclosure_typePARTIALLY INCLOSED, DOUBLE SHELL
wall_thickness0.058 INCHES NOMINAL IN
first_end_stylePLAIN
mounting_methodTHREADED STUD(S) SINGLE GROUP
frequency_rating400.0 HERTZ NOMINAL SINGLE COMPONENT
nominal_thread_size0.164 INCHES SINGLE GROUP IN
NSN4710-01-005-1142
COMPONENT DIAGRAM
PIPE SECTION — SCHEDULE = WALL THICKNESS WALL: — OD: — LENGTH: — — — PN: M1591 · OEM ⚠ VERIFY BEFORE ORDERING Schedule = wall thickness, NOT pipe diameter. Sch 40 and Sch 80 have the same OD but different wall thickness. Nominal pipe size ≠ actual OD — a 1" pipe is actually 1.315" OD ✓ BROKER TIP Sch 40 = standard wall, Sch 80 = heavy wall (higher pressure), Sch 160 = extra heavy. Seamless pipe is required for high-pressure applications — welded pipe has lower ratings PARTSTABLE TECHNICAL DRAWING — NOT TO SCALE
KEY FEATURES
•
FIRST END STYLE: PLAIN
•
DIAMETER: 0.750 INCHES NOMINAL IN
•
CROSS-SECTIONAL SHAPE STYLE: PLAIN ROUND
•
WALL THICKNESS: 0.058 INCHES NOMINAL IN
•
SECOND END RELATIONSHIP WITH FIRST END: IDENTICAL
•
MATERIAL: COPPER
•
CONSTRUCTION: SEAMLESS
TECHNICAL CHARACTERISTICS
FIRST END STYLEPLAIN
DIAMETER0.750 INCHES NOMINAL IN
CROSS-SECTIONAL SHAPE STYLEPLAIN ROUND
WALL THICKNESS0.058 INCHES NOMINAL IN
SECOND END RELATIONSHIP WITH FIRST ENDIDENTICAL
MATERIALCOPPER
CONSTRUCTIONSEAMLESS
SUBSTITUTES & CROSS-REFERENCES

No substitute or cross-reference records for this part.

LIFECYCLE
NSN statusActive· U.S. Government catalog
No demilitarization required
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FREQUENTLY ASKED QUESTIONS
What is M1591?
M1591 is a COVER,TELEPHONE JACK.
What is the NSN for M1591?
M1591 is cataloged in the U.S. Government catalog under NSN 4710-01-005-1142. This indicates validated use in U.S. government and defense supply chains.
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✓ PartsTable — the parts reference. Every fact cited to its source.
PartsTable Design LLC · partstable.com
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
PartsTable commercial catalog: edition Unified commercial catalog snapshot through 2026-09-28, edition date not on file, retrieved 2026-09-28.