SCREW,CLOSE TOLERANCE
Price to win
From deduped DIBBS award lines (unit cost × quantity). Not a bid recommendation — observed history only.
Average unit cost
$27.49
Weighted average
$28.34
Weighted by quantity
Observed range
$24.65–$30.33
Coverage
2 awards
Jun 10, 1994 – Aug 4, 2010
Average: $27.49 · Weighted avg: $28.34 · Range: $24.65–$30.33 · Based on 2 awards, Jun 10, 1994–Aug 4, 2010.
Trend chart needs at least 4 priced awards in this window (2 available).
DIBBS award history
Distinct award lines for this NSN (deduped). Line total is unit cost × quantity.
2 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 NAS498, NAS586-31
Characteristics
FLIS item characteristics from PUB LOG identification.
| Characteristic | Value |
|---|---|
| COUNTERSINK ANGLE | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| FASTENER LENGTH | INCHES MINIMUM 2.564 AND INCHES MAXIMUM 2.594 |
| GRIP DIAMETER | INCHES MINIMUM 0.3735 AND INCHES MAXIMUM 0.3745 |
| GRIP LENGTH | INCHES MINIMUM 1.928 AND INCHES MAXIMUM 1.948 |
| HARDNESS RATING | OVERALL ROCKWELL C MINIMUM 36.0 AND ROCKWELL C MAXIMUM 40.0 |
| HEAD DIAMETER | INCHES MINIMUM 0.717 AND INCHES MAXIMUM 0.760 |
| MATERIAL | OVERALL STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 OR STEEL COMP 4130 |
| MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 160000 |
| NOMINAL THREAD DIAMETER | INCHES 0.375 |
| SPECIFICATION/STANDARD DATA | PROFESSIONAL/INDUSTRIAL ASSOCIATION STANDARD 80205-NAS586 |
| SURFACE FINISH | THREADS MICROINCHES 32.0 |
| SURFACE TREATMENT | OVERALL CADMIUM AND CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--416,TYE 2,CLASS 3 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | INCHES MINIMUM 0.616 AND INCHES MAXIMUM 0.666 |
| THREAD QUANTITY PER INCH | 24 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
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DIBBS · quotes by Sep 24, 2026 · UNRESTRICTED