NSN 4730-01-516-8290 — this item is cataloged by the U.S. Government under National Stock Number 4730-01-516-8290. Manufacturer of record part number: Q504R-2.
4730-01-516-8290 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
Features
Tailpiece,union — FSC 4730
Nominal Pipe Size Designation: 0.375 INCHES IN
Flange Thickness: 0.100 INCHES NOMINAL IN
End Connection Type: THREADED
Seat Type: STRAIGHT FACE
Thread Direction: RIGHT-HAND
Thread Size: 3/8-18
Screw Thread Series Designator: NPT
Identification
NSN: 4730-01-516-8290
NIIN: 015168290
FSC: 4730 — Hose, Pipe, Tube, Lubrication, and Railing Fittings
FSG: 47 — Pipe, Tubing, Hose, and Fittings
Primary part number: Q504R-2
Manufacturer: Ssp Fittings Corp
General Description
The Tailpiece,union, cataloged under National Stock Number 4730-01-516-8290, is classified within Federal Supply Class 4730 (Hose, Pipe, Tube, Lubrication, and Railing Fittings) of the Pipe, Tubing, Hose, and Fittings group. The manufacturer of record is Ssp Fittings Corp. Government technical data includes 10 specifications, cited from the U.S. Government catalog. The record lists 1 manufacturer part number for this item, enabling identification through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 9 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
161K0233 PN Q504R-2
5/9Secondary reference
Drs Environmental Systems Inc
161K0000
D/9Drawing number reference only
U.S. Government activity
161K0000 ITEM 15
3/9Design control — primary reference
U.S. Government activity
161K0000 ITEM 15
C/1Advisory reference — outside the item-of-supply concept
U.S. Government activity
161K0233-2
5/9Secondary reference
U.S. Government activity
161K0233 PN Q504R-2
5/9Secondary reference
U.S. Government activity
Related Parts
4610-01-516-8304POSSIBLE MATCH
FILTER ELEMENT,REVERSE OSMOSIS
4040-ACM2-TSA
4730-01-516-8312POSSIBLE MATCH
TAILPIECE,UNION
4730-01-516-8313POSSIBLE MATCH
TAILPIECE,UNION
5306-01-517-4820POSSIBLE MATCH
BOLT,U
4820-01-517-5457POSSIBLE MATCH
VALVE,PLUG
4M4F-PR4-VT-SS
4820-01-517-5830POSSIBLE MATCH
VALVE,GLOBE
4M4F-SN6LR-SS
4730-01-517-6903POSSIBLE MATCH
ADAPTER,STRAIGHT,PIPE TO TUBE
5999-01-517-8471POSSIBLE MATCH
SHIELDING GASKET,ELECTRONIC
6680-01-518-5215POSSIBLE MATCH
INDICATOR-TRANSMITTER,RATE OF FL
SF10
Frequently Asked Questions
What is NSN 4730-01-516-8290?
NSN 4730-01-516-8290 is a Tailpiece,union, manufactured by Ssp Fittings Corp, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
What part numbers are listed for NSN 4730-01-516-8290?
NSN 4730-01-516-8290 has 1 manufacturer part number on file: Q504R-2 (Ssp Fittings Corp).
What NSN replaces 4730-01-516-8290?
9 possible matches (shared part number, not a government interchangeability claim): 4610-01-516-8304, 4730-01-516-8312, 4730-01-516-8313. Verify interchangeability with system specifications before substitution.
What are the specifications of Q504R-2?
Key specifications for Q504R-2: Nominal Pipe Size Designation: 0.375 INCHES IN; Flange Thickness: 0.100 INCHES NOMINAL IN; End Connection Type: THREADED; Overall Length: 1.690 INCHES NOMINAL IN. 10 specifications are documented in the U.S. Government catalog.
Is NSN 4730-01-516-8290 hazardous material?
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
Sources
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-16.
U.S. Government catalog: edition PUBLOGDVD v12.0.0 (OCT 2026), edition date 2026-10-01, retrieved 2026-10-18.
✓ Data cited from the U.S. Government catalog; commercial cross-references from OEM and certified industry sources.