Tube Coupling Nut P/N 5310003321

Specifications

Surface treatment

Overall Passivate

Nominal thread size

Inches 0.750

Material

Overall Steel Corrosion Resisting

Thread series

UNF

Nominal tube outside diameter

Inches 0.500

Specification/standard data

Professional/industrial Association Standard 81343-J514

Nondefinitive spec/std data

Figure 31

Length to shoulder

0.599 in (nominal)

Smallest inside diameter

0.505 in (nominal)

Nut height

0.844 in (nominal)

Thread class

2B

Thread direction

Right-Hand

Thread quantity per inch

16

Seat angle

45.00 ° (nominal)

Width across flats

0.875 in (nominal)

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

Cross-reference part numbers

5310003321 8BUSS MS51823-6SS J514 8-080110S MILF21467FIG25 13207E4674-6

Also referenced as

501-5203068 ITE 2100-983088ALTB

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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 7 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 4730-00-800-4791?
NSN 4730-00-800-4791 (4730008004791) — Tube Coupling Nut: SECO Parts has 7 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 4730-00-800-4791 available?
SECO Parts has 7 in stock in Augusta, GA — order or request a quote below.

How much does NSN 4730-00-800-4791 cost?
NSN 4730-00-800-4791 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 part numbers cross-reference to NSN 4730-00-800-4791?
Part numbers that cross-reference this NSN include 5310003321, 8BUSS, MS51823-6SS, J514, 8-080110S, MILF21467FIG25, 13207E4674-6. It is also referenced by older, superseded or advisory numbers: 501-5203068 ITE, 2100-983088ALTB. SECO can quote against any of them.