Tube Coupling Nut P/N 477 612

Specifications

Length to shoulder

0.532 in (nominal)

Nut height

0.620 in (nominal)

Width across flats

0.563 in (nominal)

Thread class

3B

Material

Overall Aluminum Alloy

Surface treatment

Overall Anodize

Nominal tube outside diameter

Inches 0.250

Special features

Weapon System Essential. Grumman A-10 Aircraft

Smallest inside diameter

0.305 in (nominal)

Thread series

UNF

Nominal thread size

Inches 0.438

Thread direction

Right-Hand

Thread quantity per inch

20

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

Cross-reference part numbers

477 612 416775-3 946.29.85.203 3110242 290-4D AN818-4D 731857-104 720335-4 21004 D58126-4-19 263-013-4320 00263-0042-88 263-0042-88 Z00.N7230061453 NK818-4D C8175450 8176560

Also referenced as

272-1021P9 AN818-40 AN818-4DL AN818D4 10108346

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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	H9D activity H9D
Acquisition advice code	D DLA/GSA stocked — stocked by DLA or GSA and issued from central stock
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 4730-00-287-0289?
NSN 4730-00-287-0289 (4730002870289) — Tube Coupling Nut: SECO Parts has 17 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 4730-00-287-0289 available?
SECO Parts has 17 in stock in Augusta, GA — order or request a quote below.

How much does NSN 4730-00-287-0289 cost?
NSN 4730-00-287-0289 is a low-cost part, so SECO quotes it by the line rather than by the piece: there is a $50 minimum per line, and quantity pricing on request — usually answered the same business day.

What does NSN 4730-00-287-0289 fit?
The federal catalog lists NSN 4730-00-287-0289 as used on: B-1 Aircraft Support Equipment. B-52 Aircraft Support Equipment. TF33-P-3/5/9 (C/EC-135, B-52H) Aircraft Engine. H-3 Helicopter Support Equipment..

What part numbers cross-reference to NSN 4730-00-287-0289?
Part numbers that cross-reference this NSN include 477 612, 416775-3, 946.29.85.203, 3110242, 290-4D, AN818-4D, 731857-104, 720335-4. It is also referenced by older, superseded or advisory numbers: 272-1021P9, AN818-40, AN818-4DL, AN818D4, 10108346. SECO can quote against any of them.