The Seat,valve, cataloged under National Stock Number 4820-01-218-8028, is classified within Federal Supply Class 4820 (No Item Name Available) of the Valves group. The primary manufacturer of record is Anderson Greenwood Lp Dba Anderson Greenwood Crosby. Government technical data includes 16 verified specifications, sourced from the Federal Logistics Information System (FLIS). This item has 4 commercial cross-references from 1 manufacturer, enabling identification through both NSN and commercial part number lookups. 9 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active.
| Parameter | Value |
|---|---|
| NSN | 4820-01-218-8028 |
| Primary Part Number | A7410.001.127 |
| Item Name | Seat,valve |
| FSC / FSG | 4820 / 48 — No Item Name Available |
| Manufacturer | Anderson Greenwood Lp Dba Anderson Greenwood Crosby |
| Status | ACTIVE |
| Nominal Thread Size | 1.125 INCHES SINGLE THREADED PORTION IN |
| Body Inside Diameter | 1.047 INCHES NOMINAL IN |
| Thread Series Designator | UNEF SINGLE THREADED PORTION |
| Style Designator | PLAIN THREADED |
| Material | COPPER ALLOY OVERALL |
| Material Document and Classification | QQ-N-281 FED SPEC SINGLE MATERIAL RESPONSE OVERALL |
| Reference Number Differentiating Characteristics | MATERIAL WILL BE IN ACCORDANCE WITH SHIPS PARTS CONTROL CENTER ACTIVITY HX QUALITY CONTROL,MANUFACTURING AND TESTING SPECIFICATIONS |
| Thread Length | 1.000 INCHES NOMINAL SINGLE THREADED PORTION IN |
| Seat Angle in Deg | 0.750 NOMINAL |
| Taper Length | 0.031 INCHES NOMINAL IN |
| Criticality Code Justification | ZZZY |
| Seating Surface Shape | ANGULAR |
| Taper Minor Diameter | 0.750 INCHES NOMINAL IN |
| Thread Quantity Per Inch | 18 SINGLE THREADED PORTION |
| Thread Class | 2A SINGLE THREADED PORTION A |
| Taper Major Diameter | 1.000 INCHES NOMINAL IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Part Number | Manufacturer |
|---|---|
| A7410.001.127 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| A7410.002.127 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 8538PC20 SPCLN | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
| 8538 PIECE 20 | Anderson Greenwood Lp Dba Anderson Greenwood Crosby (USA) |
NSN 4820-01-218-8028 is a Seat,valve, manufactured by Anderson Greenwood Lp Dba Anderson Greenwood Crosby, classified under FSC 4820 (No Item Name Available). Status: active.
NSN 4820-01-218-8028 has 4 cross-referenced part numbers: A7410.001.127 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), A7410.002.127 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8538PC20 SPCLN (Anderson Greenwood Lp Dba Anderson Greenwood Crosby), 8538 PIECE 20 (Anderson Greenwood Lp Dba Anderson Greenwood Crosby).
There are 9 known substitutes for 4820-01-218-8028: 4820-00-490-3257, 4820-00-588-2725, 4820-00-759-5561 and 6 more. Verify interchangeability with system specifications before substitution.
Key specifications for A7410.001.127: Nominal Thread Size: 1.125 INCHES SINGLE THREADED PORTION IN; Body Inside Diameter: 1.047 INCHES NOMINAL IN; Thread Series Designator: UNEF SINGLE THREADED PORTION; Style Designator: PLAIN THREADED. 17 total characteristics are documented in the Federal Logistics Information System.