SCREW,CLOSE TOLERANCE
Price to win
From deduped DIBBS award lines (unit cost × quantity). Not a bid recommendation — observed history only.
Average unit cost
$10.35
Weighted average
$9.96
Weighted by quantity
Observed range
$5.01–$20.25
Coverage
9 awards
Oct 21, 2004 – Jul 14, 2025
Average: $10.35 · Weighted avg: $9.96 · Range: $5.01–$20.25 · Based on 9 awards, Oct 21, 2004–Jul 14, 2025.
Unit cost by award date · 9 priced lines
DIBBS award history
Distinct award lines for this NSN (deduped). Line total is unit cost × quantity.
9 distinct award lines
| Date | Manufacturer | Qty × unit | Total | Contract |
|---|---|---|---|---|
| Jul 14, 2025 | L2519B S F (BUSINESS SOLUTIONS FASTENERS)POINTE-CLAIRE, QCSAM | 1,400 × $12.89 | $18,046 | SPE4A625PAH88P00002 |
| May 23, 2024 | 2V484BOEING DISTRIBUTION SERVICES, INC.O FALLON, MOSAM | 344 × $5.01 | $1,723 | SPE4A624PP667 |
| Sep 19, 2023 | 84E19LECUYER AVIATION LLCFORT WORTH, TXSAM | 300 × $5.40 | $1,620 | SPE4A523P6128P00001 |
| Jul 19, 2022 | 2V484BOEING DISTRIBUTION SERVICES, INC.O FALLON, MOSAM | 491 × $6.50 | $3,192 | SPE4A522P7539P00001 |
| Dec 13, 2021 | 745V4DON INDUSTRIAL GROUP LLCHOUSTON, TXSAM | 200 × $6.68 | $1,336 | SPE4A622V6876 |
| Nov 18, 2021 | 745V4DON INDUSTRIAL GROUP LLCHOUSTON, TXSAM | 273 × $10.95 | $2,989 | SPE4A522P1824 |
| Mar 30, 2021 | 2V484BOEING DISTRIBUTION SERVICES, INC.O FALLON, MOSAM | 165 × $13.00 | $2,145 | SPE4A621PF360 |
| Mar 2, 2015 | 77VQ5AEROCON CORP.HAUPPAUGE, NYSAM | 37 × $20.25 | $749 | SPE5E215M1280 |
| Oct 21, 2004 | 3GJ88MODES AIRCRAFT HARDWAREARLINGTON, TXSAM | 70 × $12.50 | $875 | SP054005M0887 |
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 ST3M557-4-3
PN HT4027-4-3
PN HT4027-4-3
PN ST3M557-4-3
PN 11923-4-3
PN ST3M557, ST3M557-4-3
Characteristics
FLIS item characteristics from PUB LOG identification.
| Characteristic | Value |
|---|---|
| COUNTERSINK ANGLE | DEGREES MINIMUM 99.0 AND DEGREES MAXIMUM 101.0 |
| END ITEM IDENTIFICATION | WING AIRCRAFT |
| FASTENER LENGTH | INCHES MINIMUM 0.642 AND INCHES MAXIMUM 0.672 |
| GRIP DIAMETER | INCHES MINIMUM 0.2490 AND INCHES MAXIMUM 0.2495 |
| GRIP LENGTH | INCHES MINIMUM 0.178 AND INCHES MAXIMUM 0.198 |
| HEAD DIAMETER | INCHES MINIMUM 0.3898 AND INCHES MAXIMUM 0.3948 |
| MATERIAL | OVERALL NICKEL ALLOY 718 |
| MATERIAL DOCUMENT AND CLASSIFICATION | OVERALL ASSN STD SINGLE MATERIAL RESPONSE A-S5662 |
| NOMINAL THREAD DIAMETER | INCHES 0.250 |
| SURFACE TREATMENT | OVERALL PASSIVATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL FED SPEC SINGLE TREATMENT RESPONSE QQ--35 |
| THREAD CLASS | 3A |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD LENGTH | INCHES NOMINAL 0.469 |
| THREAD QUANTITY PER INCH | 28 |
| THREAD SERIES DESIGNATOR | UNIFIED NATIONAL JOINT FINE (UNJF) |
Open buys
DIBBS · quotes by Sep 25, 2026 · UNRESTRICTED
