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51228 2IN — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

51228 2IN: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: NICKEL ALLOY, style_designator: HEXAGON, INTERNAL THREAD, SHOULDERED, casehardening_indicator: NOT CASEHARDENED, major_unthreaded_outside_diameter: 2.000 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-089-7446, 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
51228 2IN
NSN: 4730-01-089-7446
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 35795 — LESLIE CONTROLS, INC. DBA LESLIE CONTROLS INC (USA)
SPECIFICATIONS
materialNICKEL ALLOY
style_designatorHEXAGON, INTERNAL THREAD, SHOULDERED
casehardening_indicatorNOT CASEHARDENED
major_unthreaded_outside_diameter2.000 INCHES NOMINAL IN
NSN4730-01-089-7446
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 51228 2IN · 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
•
STYLE DESIGNATOR: HEXAGON, INTERNAL THREAD, SHOULDERED
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
MAJOR UNTHREADED OUTSIDE DIAMETER: 2.000 INCHES NOMINAL IN
•
MATERIAL: NICKEL ALLOY
TECHNICAL CHARACTERISTICS
STYLE DESIGNATORHEXAGON, INTERNAL THREAD, SHOULDERED
CASEHARDENING INDICATORNOT CASEHARDENED
MAJOR UNTHREADED OUTSIDE DIAMETER2.000 INCHES NOMINAL IN
MATERIALNICKEL ALLOY
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 51228 2IN?
51228 2IN is a PACKING NUT.
What is the NSN for 51228 2IN?
51228 2IN is cataloged in the U.S. Government catalog under NSN 4730-01-089-7446. 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.