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592-4758641 — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

592-4758641: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: COPPER ALLOY, thread_size: 1 1/4-12, thread_class: 2B, hole_diameter: 0.078 INCHES NOMINAL IN, thread_length: 0.734 INCHES NOMINAL IN, overall_length: 1.090 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-166-2212, 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
592-4758641
NSN: 4730-01-166-2212
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 41620 — MORSE DIVING, INC. (USA)
SPECIFICATIONS
materialCOPPER ALLOY
thread_size1 1/4-12
thread_class2B
hole_diameter0.078 INCHES NOMINAL IN
thread_length0.734 INCHES NOMINAL IN
overall_length1.090 INCHES NOMINAL IN
style_designatorROUND, INTERNAL THREAD, SHOULDERED
thread_directionRIGHT-HAND
length_to_shoulder0.938 INCHES NOMINAL IN
hole_or_slot_quantity4
screw_thread_locationINTERNAL
casehardening_indicatorNOT CASEHARDENED
NSN4730-01-166-2212
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 592-4758641 · 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
•
LENGTH TO SHOULDER: 0.938 INCHES NOMINAL IN
•
HOLE OR SLOT QUANTITY: 4
•
THREAD LENGTH: 0.734 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, INTERNAL THREAD, SHOULDERED
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 1 1/4-12
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER0.938 INCHES NOMINAL IN
HOLE OR SLOT QUANTITY4
THREAD LENGTH0.734 INCHES NOMINAL IN
STYLE DESIGNATORROUND, INTERNAL THREAD, SHOULDERED
OVERALL LENGTH1.090 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE1 1/4-12
SCREW THREAD SERIES DESIGNATORUNF
THREAD CLASS2B
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 1
4758641Reference document
Same NSN cross-reference
Reference document — Drawing number reference only
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 592-4758641?
592-4758641 is a PACKING NUT.
What parts can replace 592-4758641?
There is 1 known substitute for 592-4758641: 4758641. Substitute compatibility should be verified for your specific system.
What is the NSN for 592-4758641?
592-4758641 is cataloged in the U.S. Government catalog under NSN 4730-01-166-2212. 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.