KNOB
Price to win
From deduped DIBBS award lines (unit cost × quantity). Not a bid recommendation — observed history only.
Average unit cost
$17.33
Weighted average
$17.80
Weighted by quantity
Observed range
$12.00–$25.00
Coverage
3 awards
Dec 30, 1996 – Feb 9, 2026
Average: $17.33 · Weighted avg: $17.80 · Range: $12.00–$25.00 · Based on 3 awards, Dec 30, 1996–Feb 9, 2026.
Trend chart needs at least 4 priced awards in this window (3 available).
DIBBS award history
Distinct award lines for this NSN (deduped). Line total is unit cost × quantity.
3 distinct award lines
Manufacturers who have won this NSN
Distinct CAGEs with a confirmed DIBBS award line for this part — each opens the manufacturer page.
Approved manufacturers
Qualified to supply per MCRL — no confirmed DIBBS award on record for this NSN. Each CAGE opens the manufacturer page.
PN KN-500B-1/8
PN KN-500B-1/8
PN 28710-1420000
PN 28710-1420000
Characteristics
FLIS item characteristics from PUB LOG identification.
| Characteristic | Value |
|---|---|
| ATTACHMENT METHOD | SETSCREWS |
| COUNTERBORE DEPTH | INCHES NOMINAL 0.157 |
| COUNTERBORE DIAMETER | INCHES NOMINAL 0.375 |
| DISTANCE FROM HOLE CENTER TO KNOB/SKIRT BASE | INCHES NOMINAL 0.280 |
| GRIPPING SURFACE CONDITION | GRIP AID |
| INSIDE DIAMETER | INCHES NOMINAL 0.251 |
| MATERIAL TRANSPARENCY | OPAQUE |
| NOMINAL THREAD SIZE | SCREW HOLE INCHES 0.138 |
| OUTSIDE DIAMETER | INCHES NOMINAL 0.500 |
| OVERALL DEPTH | INCHES NOMINAL 0.512 |
| OVERALL THICKNESS | INCHES NOMINAL 0.625 |
| REFERENCE MARKING | INDICATOR LINE |
| SCREW DRIVE TYPE | HEXAGON SOCKET |
| SETSCREW HOLE QUANTITY | 2 |
| SKIRT DESIGN | NONDETACHABLE |
| SKIRT OUTSIDE DIAMETER | INCHES NOMINAL 0.445 |
| SPECIAL FEATURES | INDICATOR LINE IS LOCATED ON SIDE OF KNOB |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | SCREW HOLE UNIFIED NATIONAL COARSE (UNC) |
Open buys
DIBBS · quotes by Sep 28, 2026 · UNRESTRICTED