The Stem, cataloged under National Stock Number 2540-00-040-2170, is classified within Federal Supply Class 2540 (No Item Name Available) of the Vehicular Equipment Components group. The primary manufacturer of record is Opw Fueling Components Inc. Div Opw Fueling Components. Government technical data includes 1 verified specification, sourced from the Federal Logistics Information System (FLIS). This item has 2 commercial cross-references from 2 manufacturers, enabling identification through both NSN and commercial part number lookups. 4 verified substitutes exist in the FLIS interchangeability database. Current acquisition status: Active. Unit of issue: EA.
| Parameter | Value |
|---|---|
| NSN | 2540-00-040-2170 |
| Primary Part Number | B421 |
| Item Name | Stem |
| FSC / FSG | 2540 / 25 — No Item Name Available |
| Manufacturer | Opw Fueling Components Inc. Div Opw Fueling Components |
| Status | ACTIVE |
| General Characteristics Item Description | MATERIAL,CAST BRONZE,FIRST END DATA,1ST SEAT,0.250 IN. H,0.937 IN. DIA,1ST GROOVE,0.656 IN. DIA,0.375 IN. W,2ND SEAT,1.062 IN. DIA,0.250 IN. H,2ND GROOVE,0.750 IN. DIA,0.562 IN. W,THD DATA,15/16-1250P-2500,3.375 IN. THD LG,2ND END DATA,1ST STEP THD,7/16-14NC-2,0.438 IN. THD LG,2ND STEP SQUARED,0.500 IN.SQUARE,3 DEG TAPER,0.656 IN. SQUARE LEG,3RD STEP TAPERED FROM 0.9313 IN. MIN,0.9375 IN. MAX TO 0.729 IN. MIN,0.734 IN. MAX,5.937 IN. LG IN |
| Acquisition Status | ACTIVE |
| HAZMAT | No |
| Unit of Issue | EA |
NSN 2540-00-040-2170 is a Stem, manufactured by Opw Fueling Components Inc. Div Opw Fueling Components, classified under FSC 2540 (No Item Name Available). Status: active.
NSN 2540-00-040-2170 has 2 cross-referenced part numbers: B421 (Opw Fueling Components Inc. Div Opw Fueling Components), 8330118 (U S Army Tank Automotive Command Amsta-Im-Mm).
There are 4 known substitutes for 2540-00-040-2170: 3455-00-232-9028, 9150-00-261-8293, 5355-00-367-4671 and 1 more. Verify interchangeability with system specifications before substitution.
Key specifications for B421: General Characteristics Item Description: MATERIAL,CAST BRONZE,FIRST END DATA,1ST SEAT,0.250 IN. H,0.937 IN. DIA,1ST GROOVE,0.656 IN. DIA,0.375 IN. W,2ND SEAT,1.062 IN. DIA,0.250 IN. H,2ND GROOVE,0.750 IN. DIA,0.562 IN. W,THD DATA,15/16-1250P-2500,3.375 IN. THD LG,2ND END DATA,1ST STEP THD,7/16-14NC-2,0.438 IN. THD LG,2ND STEP SQUARED,0.500 IN.SQUARE,3 DEG TAPER,0.656 IN. SQUARE LEG,3RD STEP TAPERED FROM 0.9313 IN. MIN,0.9375 IN. MAX TO 0.729 IN. MIN,0.734 IN. MAX,5.937 IN. LG IN. 1 total characteristics are documented in the Federal Logistics Information System.