SCREW,CLOSE TOLERANCE
Price to win
From deduped DIBBS award lines (unit cost × quantity). Not a bid recommendation — observed history only.
Average unit cost
$3.91
Weighted average
$2.05
Weighted by quantity
Observed range
$1.28–$17.18
Coverage
17 awards
Mar 19, 2001 – Jun 2, 2025
Average: $3.91 · Weighted avg: $2.05 · Range: $1.28–$17.18 · Based on 17 awards, Mar 19, 2001–Jun 2, 2025.
Unit cost by award date · 17 priced lines
DIBBS award history
Distinct award lines for this NSN (deduped). Line total is unit cost × quantity.
17 distinct award lines
| Date | Manufacturer | Qty × unit | Total | Contract |
|---|---|---|---|---|
| Jun 2, 2025 | 7N929PRIDE ELECTRONICS INCLINDENHURST, NYSAM | 83 × $3.98 | $330 | SPE4A625PU666 |
| May 2, 2025 | 4AGF5VC DISPLAYS, INC.BROOKSVILLE, FLSAM | 198 × $4.00 | $792 | SPE4A625PR150 |
| Jan 6, 2025 | 0W778C U ENTERPRISES LTDLOMPOC, CASAM | 233 × $2.99 | $697 | SPE4A625PB197 |
| Aug 23, 2024 | 7N929PRIDE ELECTRONICS INCLINDENHURST, NYSAM | 411 × $2.99 | $1,229 | SPE4A724PG693 |
| Oct 9, 2023 | 58985AVIARMS SUPPORT CORPFARMINGDALE, NYSAM | 211 × $3.50 | $739 | SPE4A624P0795 |
| Jul 19, 2023 | 86BR3VERTICAL SOLUTIONS INCBURNSVILLE, MNSAM | 74 × $5.00 | $370 | SPE4A623PU049 |
| Jan 12, 2023 | 2N935BOEING DISTRIBUTION SERVICES X, INC.HIALEAH, FLSAM | 25 × $17.18 | $430 | SPE4A623P9783 |
| Aug 12, 2022 | 01UA8ARIZONA AERO FASTENERS, INCMOORPARK, CASAM | 50 × $5.00 | $250 | SPE4A622PQ174 |
| Feb 9, 2022 | 87WK3GOOD VIBES, LLCPLEASANTVILLE, IASAM | 190 × $3.88 | $737 | SPE4A622PB636 |
| Nov 17, 2021 | 87WK3GOOD VIBES, LLCPLEASANTVILLE, IASAM | 75 × $4.49 | $337 | SPE4A622P4403 |
| Oct 21, 2021 | 87WK3GOOD VIBES, LLCPLEASANTVILLE, IASAM | 147 × $3.89 | $572 | SPE4A622P2247 |
| Oct 30, 2019 | 01UA8ARIZONA AERO FASTENERS, INCMOORPARK, CASAM | 1,395 × $1.62 | $2,260 | SPE5E220V0754 |
| Apr 5, 2017 | 7M8V8ASTRAL AIR PARTS LLCELMWOOD PARK, NJSAM | 1,252 × $1.40 | $1,753 | SPE5E217V6240 |
| May 23, 2013 | 3M0M5SPECIALTY COMPONENTS INC.MIDLOTHIAN, VASAM | 1,174 × $1.50 | $1,761 | SPM5E213V3601 |
| Dec 30, 2011 | 5A422ASTRAL AIR PARTS INCELMWOOD PARK, NJSAM | 406 × $1.69 | $686 | SPM5A212V0518 |
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 51B221-5
PN 51B221-5
PN 51B221-5
PN 51B221-5
PN 51B221-5
PN 51B221-5
PN 51B221-5
PN 51B221-5
PN 51B221-5
Characteristics
FLIS item characteristics from PUB LOG identification.
| Characteristic | Value |
|---|---|
| FASTENER LENGTH | INCHES MINIMUM 0.573 AND INCHES MAXIMUM 0.620 |
| GRIP DIAMETER | INCHES MINIMUM 0.1885 AND INCHES MAXIMUM 0.1895 |
| GRIP LENGTH | INCHES MINIMUM 0.297 AND INCHES MAXIMUM 0.327 |
| HEAD DIAMETER | INCHES MINIMUM 0.361 AND INCHES MAXIMUM 0.381 |
| HEAD HEIGHT | INCHES MINIMUM 0.103 AND INCHES MAXIMUM 0.118 |
| MATERIAL | OVERALL STEEL COMP 4140 OR STEEL COMP E4340 OR STEEL COMP 6150 OR STEEL COMP 8735 OR STEEL COMP 8740 |
| MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL MIL SPEC 1ST MATERIAL RESPONSE -IL-S-5626 OR MIL SPEC 2ND MATERIAL RESPONSE -IL-S-5000 OR MIL SPEC 3RD MATERIAL RESPONSE -IL-S-8503 OR MIL SPEC 4TH MATERIAL RESPONSE -IL-S-6098 OR MIL SPEC 5TH MATERIAL RESPONSE -IL-S-6049 |
| MINIMUM TENSILE STRENGTH | POUNDS PER SQUARE INCH 180000 |
| NOMINAL THREAD DIAMETER | INCHES 0.190 |
| SURFACE FINISH | GRIP 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 0.276 |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES DESIGNATOR | UNF |
Open buys
DIBBS · quotes by Sep 25, 2026 · TOTAL SMALL BUSINESS
