Tube Coupling Nut P/N NAS593-24

Specifications

Smallest inside diameter

1.468–1.510 in

Thread series

Unified National Joint (Unj)

Length to shoulder

0.802–0.822 in

Thread class

3B

Width across flats

1.975–2.000 in

Material

Overall Aluminum Alloy 2024

Material document and classification

Overall Fed Spec Single Material Response QQ-A-225 to 6,T851

Thread quantity per inch

12

Surface treatment document and classification

Overall MIL Spec Single Treatment Response -IL-A-8625

Nominal thread size

Inches 1.875

Nominal tube outside diameter

Inches 1.500

Thread direction

Right-Hand

Fabrication method

Machined

Nut height

1.344–1.375 in

Specification/standard data

Government Standard 80205-NAS593

Seat angle

33.00 ° (nominal)

Surface treatment

Overall Anodize

From the federal catalog's item characteristics for this NSN. Confirm critical dimensions against your part or drawing before ordering.

Cross-reference part numbers

NAS593-24 NAS597 S2446971 4176-24

Also referenced as

NAS593-24D

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual. They find the item; confirm the current part number when you order.

Shown for identification only. SECO can quote against any of these numbers.

Logistics data

Source of supply	SMS DLA Land and Maritime, Columbus, Ohio
Acquisition advice code	Z Insurance/numeric stockage objective — held by the government as insurance stock for contingencies, not for routine issue. SECO has 18 on the shelf
Unit of issue	EA each
Demilitarization code	A Demilitarization not required — non-munitions-list item
Controlled inventory code	U Unclassified
Hazardous material indicator	N No hazardous material

Source: public FLIS/PUB LOG cataloging data.

Why buy from SECO

These quantities sit on our own shelves — we are a stocking supplier, not a broker sourcing after you order. Condition-coded stock, formal quotes with NSN/PN on the paperwork, POs and GPC welcome, fast U.S. shipping.

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FAQ

What is NSN 4730-00-516-5012?
NSN 4730-00-516-5012 (4730005165012) — Tube Coupling Nut: SECO Parts has 18 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for tube coupling nut in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings).

Is NSN 4730-00-516-5012 available?
SECO Parts has 18 in stock in Augusta, GA — order or request a quote below.

How much does NSN 4730-00-516-5012 cost?
The government catalog (FEDLOG) lists NSN 4730-00-516-5012 at $173.29 per each. That is a public reference, not SECO's price: SECO quotes each request, usually the same business day, and surplus parts often quote below or above it.

What does NSN 4730-00-516-5012 fit?
The federal catalog lists NSN 4730-00-516-5012 as used on: 40A Helicopter, Black Hawk UH-60A.

What part numbers cross-reference to NSN 4730-00-516-5012?
Part numbers that cross-reference this NSN include NAS593-24, NAS597, S2446971, 4176-24. It is also referenced by older, superseded or advisory numbers: NAS593-24D. SECO can quote against any of them.