The Cross,tube, cataloged under National Stock Number 4730-00-249-5080, 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 Swagelok Co. Government technical data includes 13 specifications, cited from the U.S. Government catalog. The record lists 3 manufacturer part numbers 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through both NSN and commercial part number lookups. 8 additional reference documents (drawings, advisory and superseded references) are recorded in the U.S. Government catalog. 3 items share a part number with this NSN in the catalog (possible match — not a government interchangeability claim). Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4730-00-249-5080 |
| Primary Part Number | SS-810-4 |
| Item Name | Cross,tube |
| FSC / FSG | 4730 / 47 — Hose, Pipe, Tube, Lubrication, and Railing Fittings |
| Manufacturer | Swagelok Co |
| Status | ACTIVE |
| Furnished Items and Quantity | 4 SHORT COUPLING NUT AND 8 FERRULE SLEEVE |
| Connection Style | FLARELESS (TUBE) FIRST END |
| Connection Type | THREADED EXTERNAL TUBE FIRST END |
| Material Document and Classification | 66 FED STD SINGLE MATERIAL RESPONSE OVERALL |
| Nominal Outside Diameter Tube Accommodated | 0.500 INCHES FIRST END IN |
| Leg Length | 0.969 INCHES MINIMUM AND 0.980 INCHES MAXIMUM ALL ENDS IN |
| Reduced Passage Nominal Inside Diameter | 0.410 INCHES ALL ENDS IN |
| Nominal Thread Size | 0.750 INCHES FIRST END IN |
| Seat Angle | 20.0 DEGREES FIRST END |
| Surface Treatment | PASSIVATE OVERALL |
| Thread Class | 3A FIRST END A |
| Material | STEEL COMP 316 OVERALL |
| Thread Series Designator | UNEF ALL ENDS |
| Acquisition Status | ACTIVE |
| DEMIL Code | DEMIL A — No Demilitarization Required |
| Hazard | No hazard code in the DLA record (HMIC N) |
| Criticality Code | X |
| Part Number | Manufacturer |
|---|---|
| SS-810-4 PRIMARY | Swagelok Co (USA) |
| 2518991-1 | Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier (USA) |
| 810-4-316 | Swagelok Co (USA) |
| Reference | Meaning |
|---|---|
| 8C316 | 5/9 Secondary reference J R Douglass Company |
| CV0115-024 | 5/9 Secondary reference Northrop Grumman Corp Electronic Systems Defensive System Div |
| 8C316 | 5/9 Secondary reference Circor Instrumentation Technologies, Inc. Dba Hoke Gyrolok |
| 8KBZ-SS | 5/9 Secondary reference A. F. Brock & Co. Dba a. F. Brock & Co. / Ph, Inc |
| I8X-SS | 5/9 Secondary reference Ssp Fittings Corp |
| 8 KBZ-SS | 5/9 Secondary reference Parker-Hannifin Corporation Div Instrumentation Products Division |
| ISSD8UCS | 5/9 Secondary reference Ssp Fittings Corp |
| 8KBZ-SS | 5/9 Secondary reference Forberg Scientific Inc |
NSN 4730-00-249-5080 is a Cross,tube, manufactured by Swagelok Co, classified under FSC 4730, Hose, Pipe, Tube, Lubrication, and Railing Fittings. Status: active.
NSN 4730-00-249-5080 has 3 manufacturer part numbers on file: SS-810-4 (Swagelok Co), 2518991-1 (Naval Air Systems Command Managed Original Design Activity Not Material/parts Supplier), 810-4-316 (Swagelok Co).
3 possible matches (shared part number, not a government interchangeability claim): 4730-01-473-3306, 4730-01-558-6431, 4730-01-594-2155. Verify interchangeability with system specifications before substitution.
Key specifications for SS-810-4: Furnished Items and Quantity: 4 SHORT COUPLING NUT AND 8 FERRULE SLEEVE; Connection Style: FLARELESS (TUBE) FIRST END; Connection Type: THREADED EXTERNAL TUBE FIRST END; Material Document and Classification: 66 FED STD SINGLE MATERIAL RESPONSE OVERALL. 13 specifications are documented in the U.S. Government catalog.
No hazard code in the DLA record (HMIC N). Hazard information on this page is shown exactly as it appears in the DLA record.
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.