Straight Pipe to Tube Adapter P/N MS51819-9

Specifications

Thread series designator

First End UNF

Media for which designed

Single Response Hydraulic Fluid

Special features

Supports Grumman A-10AIRCRAFT

Furnished items and quantity

Ferrule Sleeve 1 and Short Coupling Nut 1

Surface treatment document and classification

Overall Fed Spec Single Treatment Response QQ--416,Tye 2,Class 3

Nominal thread size

First End Inches 0.750

Surface treatment

Overall Cadmium

Operating pressure

Single Response Pounds Per Square Inch (PSI) Maximum 3000.0

Seat angle

First End Degrees 12.0

Nominal outside diameter tube accommodated

First End Inches 0.500

Nominal overall length

Inches 1.440

Thread class

2A

Nondefinitive spec/std data

Class 2 and Style 1 and Type 1

Thread series designator

Second End NPTF

Material

Overall Steel

Material document and classification

Overall Fed Spec Single Material Response QQ-S-624

Connection type

First End Threaded External Tube

Nominal thread size

Second End Inches 0.375

Maximum operating temp

First Response Fahrenheit 250.0

Maximum operating temp

Second Response Fahrenheit 250.0

Connection type

Second End Threaded External Pipe

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

Cross-reference part numbers

MS51819-9 X1506HC8 MIL-F-18866 44291

Also referenced as

8FBUS 716X8 MS51819-39

Older, superseded, advisory or drawing numbers the federal catalog associates with this NSN — the ones in an old manual.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 10 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 4730-00-409-3893?
NSN 4730-00-409-3893 (4730004093893) — Straight Pipe to Tube Adapter: SECO Parts has 10 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 4730-00-409-3893 available?
SECO Parts has 10 in stock in Augusta, GA — order or request a quote below.

How much does NSN 4730-00-409-3893 cost?
SECO typically prices parts like NSN 4730-00-409-3893 at $30–$65 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 part numbers cross-reference to NSN 4730-00-409-3893?
Part numbers that cross-reference this NSN include MS51819-9, X1506HC8, MIL-F-18866, 44291. It is also referenced by older, superseded or advisory numbers: 8FBUS, 716X8, MS51819-39. SECO can quote against any of them.