The Cap,filler Opening, cataloged under National Stock Number 2590-00-738-6975, is classified within Federal Supply Class 2590 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Protectoseal Co Container Div. Government technical data includes 14 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 5 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 6 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Cancelled.
| Parameter | Value |
|---|---|
| NSN | 2590-00-738-6975 |
| Primary Part Number | 1257/6.3/4T |
| Item Name | Cap,filler Opening |
| FSC / FSG | 2590 / 25 — No Item Name Available |
| Manufacturer | Protectoseal Co Container Div |
| Status | CANCELLED |
| Thread Class | 2A A |
| Thread Quantity | 14.000 PER INCH |
| Filler Neck Diameter for Which Designed | 5.000 INCHES NOMINAL IN |
| Thread Diameter | 2.125 INCHES NOMINAL IN |
| Overall Diameter | 4.250 INCHES NOMINAL IN |
| System for Which Designed | NONPRESSURIZED |
| Locking Device Type | INTEGRAL SELF LOCK |
| Features Provided | BREATHER HOLE |
| Color | RED |
| Style Designator | OUTSIDE CAM TYPE |
| Thread Length | 0.500 INCHES NOMINAL IN |
| Surface Treatment | PAINT OVERALL |
| Material | COPPER ALLOY OVERALL |
| Thread Series Designator | UNS |
| Acquisition Status | CANCELLED |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| 22760 | Tld Wollard Llc (USA) |
| 1257-5-1-2 | Tld Wollard Llc (USA) |
| 1257-5-1-2 | Protectoseal Co Container Div (USA) |
| 1257/6.3/4T PRIMARY | Protectoseal Co Container Div (USA) |
| 1257 | Protectoseal Co Container Div (USA) |
NSN 2590-00-738-6975 is a Cap,filler Opening, manufactured by Protectoseal Co Container Div, classified under FSC 2590 (No Item Name Available). Status: cancelled.
NSN 2590-00-738-6975 has 5 cross-referenced part numbers: 22760 (Tld Wollard Llc), 1257-5-1-2 (Tld Wollard Llc), 1257-5-1-2 (Protectoseal Co Container Div), 1257/6.3/4T (Protectoseal Co Container Div), 1257 (Protectoseal Co Container Div).
There are 6 known substitutes for 2590-00-738-6975: 6130-00-104-0052, 5945-00-232-4055, 3030-01-085-7819 and 3 more. Verify interchangeability with system specifications before substitution.
Key specifications for 1257/6.3/4T: Thread Class: 2A A; Special Features: BRASS 5.500 IN. LG BY 1.625 IN. OD STRAINER ELEMENT IS INTEGRAL PART OF FILLER CAP IN; Thread Quantity: 14.000 PER INCH; Filler Neck Diameter for Which Designed: 5.000 INCHES NOMINAL IN. 16 total characteristics are documented in the Federal Logistics Information System.
NSN 2590-00-738-6975 is currently cancelled. Check with the Defense Logistics Agency for current availability and authorized substitutes.