Straight Pipe to Tube Adapter P/N MS51503A4-4S

Specifications

Connection type

Second End Threaded External Boss

Material

Overall Steel Corrosion Resisting

Special features

Grumman Aerospace Corp A10 Aircraft

Thread series designator

Second End UNF

Nominal thread size

First End Inches 0.250

Thread class

2A

Operating pressure

Single Response Pounds Per Square Inch (PSI) Maximum 107.0

Nominal overall length

Inches 1.391

Connection type

First End Threaded Internal Pipe

Surface treatment

Overall Passivate

Thread series designator

First End NPTF

Media for which designed

Single Response Hydraulic Fluid

Specification/standard data

Government Standard 96906--S51503 and Professional/industrial Association Standard 81343-J514

Nondefinitive spec/std data

Figure 2D

Furnished items and quantity

Tube Coupling Nut W/sleeve 1 and Preformed Packing 1

Nominal thread size

Second End Inches 0.438

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

Cross-reference part numbers

MS51503A4-4S 4-4G-TX-S 4-4GBTX-SS 877077-00 7M156-4SS4 J514 4-4 070103SA MIL-F-18866 273-0403-001 0203-4-4 MS51503A4Z MS51503B4-4S 35294487 CV177873 2022-4-4C

Also referenced as

10371903

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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 2 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 4730-00-580-8171?
NSN 4730-00-580-8171 (4730005808171) — Straight Pipe to Tube Adapter: SECO Parts has 2 in stock in Augusta, GA, on our own shelf. It is the NATO Stock Number for straight pipe to tube adapter in federal supply class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings).

Is NSN 4730-00-580-8171 available?
SECO Parts has 2 in stock in Augusta, GA — order or request a quote below.

How much does NSN 4730-00-580-8171 cost?
SECO typically prices parts like NSN 4730-00-580-8171 at $25–$50 each: an estimate from the government catalog price and what SECO has charged for similar parts. It is not a quote — request one for your price, usually answered the same business day. Quote lines carry a $50 minimum.

What does NSN 4730-00-580-8171 fit?
The federal catalog lists NSN 4730-00-580-8171 as used on: General Hydraulic Application; Multiple Launch Rocket System (MLRS).

What part numbers cross-reference to NSN 4730-00-580-8171?
Part numbers that cross-reference this NSN include MS51503A4-4S, 4-4G-TX-S, 4-4GBTX-SS, 877077-00, 7M156-4SS4, J514, 4-4 070103SA, MIL-F-18866. It is also referenced by older, superseded or advisory numbers: 10371903. SECO can quote against any of them.