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10-41540C ITEM 13 — PACKING NUT

✓ Government record, cited
— · HOSE FITTING
PRODUCT OVERVIEW

10-41540C ITEM 13: PACKING NUT.

The PACKING NUT is a the manufacturer industrial component. Key specifications include material: STEEL, thread_size: 6 5/8-12, thread_class: 2B, hole_diameter: 0.250 INCHES NOMINAL IN, thread_length: 0.875 INCHES NOMINAL IN, overall_length: 1.656 INCHES NOMINAL IN. This part is cataloged in the U.S.

Government catalog under NSN 4730-01-121-7718, 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
10-41540C ITEM 13
NSN: 4730-01-121-7718
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
CAGE: 23926 — KOMATSU AMERICA CORPORATION (USA)
SPECIFICATIONS
materialSTEEL
thread_size6 5/8-12
thread_class2B
hole_diameter0.250 INCHES NOMINAL IN
thread_length0.875 INCHES NOMINAL IN
overall_length1.656 INCHES NOMINAL IN
style_designatorROUND, INTERNAL THREAD, SHOULDERED
thread_directionRIGHT-HAND
length_to_shoulder1.156 INCHES NOMINAL IN
hole_or_slot_quantity4
screw_thread_locationINTERNAL
casehardening_indicatorNOT CASEHARDENED
NSN4730-01-121-7718
COMPONENT DIAGRAM
HOSE FITTING — THREAD TYPE IS CRITICAL END A: — STRAIGHT END B: — SPECIFICATIONS Thread: — Material: — Pressure: — PN: 10-41540C ITEM 13 · 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: 1.156 INCHES NOMINAL IN
•
HOLE OR SLOT QUANTITY: 4
•
THREAD LENGTH: 0.875 INCHES NOMINAL IN
•
STYLE DESIGNATOR: ROUND, INTERNAL THREAD, SHOULDERED
•
THREAD DIRECTION: RIGHT-HAND
•
CASEHARDENING INDICATOR: NOT CASEHARDENED
•
THREAD SIZE: 6 5/8-12
TECHNICAL CHARACTERISTICS
LENGTH TO SHOULDER1.156 INCHES NOMINAL IN
HOLE OR SLOT QUANTITY4
THREAD LENGTH0.875 INCHES NOMINAL IN
STYLE DESIGNATORROUND, INTERNAL THREAD, SHOULDERED
OVERALL LENGTH1.656 INCHES NOMINAL IN
THREAD DIRECTIONRIGHT-HAND
CASEHARDENING INDICATORNOT CASEHARDENED
THREAD SIZE6 5/8-12
SCREW THREAD SERIES DESIGNATORUN
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

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 10-41540C ITEM 13?
10-41540C ITEM 13 is a PACKING NUT.
What is the NSN for 10-41540C ITEM 13?
10-41540C ITEM 13 is cataloged in the U.S. Government catalog under NSN 4730-01-121-7718. 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.