NUT,SELF-LOCKING,PLATE
DIBBS awards by month · trailing 12 mo
3 total
Price to win
From deduped DIBBS award lines (unit cost × quantity). Not a bid recommendation — observed history only.
Average unit cost
$14.84
Weighted average
$16.77
Weighted by quantity
Observed range
$0.65–$26.82
Coverage
12 awards
Nov 20, 1976 – May 4, 2026
Average: $14.84 · Weighted avg: $16.77 · Range: $0.65–$26.82 · Based on 12 awards, Nov 20, 1976–May 4, 2026.
Unit cost by award date · 12 priced lines
DIBBS award history
Distinct award lines for this NSN (deduped). Line total is unit cost × quantity.
12 distinct award lines
| Date | Manufacturer | Qty × unit | Total | Contract |
|---|---|---|---|---|
| May 4, 2026 | 53871ARLINGTON INTL AVIATION PRODUCTS LLCBURLESON, TXSAM | 462 × $17.50 | $8,085 | SPE4A626V105CP00001 |
| Mar 17, 2026 | 1HEN9NOBLE SUPPLY & LOGISTICS, LLCBOSTON, MASAM | 351 × $21.48 | $7,539 | SPE4A526FAJXV |
| Feb 23, 2026 | 1HEN9NOBLE SUPPLY & LOGISTICS, LLCBOSTON, MASAM | 111 × $21.48 | $2,384 | SPE4A526FAAPJ |
| Mar 11, 2025 | 1HEN9NOBLE SUPPLY & LOGISTICS, LLCBOSTON, MASAM | 158 × $17.91 | $2,830 | SPE4A525FAG5NP00001 |
| Feb 4, 2025 | 1HEN9NOBLE SUPPLY & LOGISTICS, LLCBOSTON, MASAM | 23 × $17.91 | $412 | SPE4A525FA4DC |
| Nov 15, 2024 | 1HEN9NOBLE SUPPLY & LOGISTICS, LLCBOSTON, MASAM | 58 × $17.91 | $1,039 | SPE4A625FAA8R |
| Apr 12, 2019 | 1V757WESCO AIRCRAFT HARDWARE CORP.FORT WORTH, TXSAM | 70 × $7.80 | $546 | SPE5E319V7298 |
| Apr 2, 2019 | 2V484BOEING DISTRIBUTION SERVICES, INC.O FALLON, MOSAM | 74 × $8.45 | $625 | SPE5EJ19V3971 |
| Dec 17, 2018 | 2N935BOEING DISTRIBUTION SERVICES X, INC.HIALEAH, FLSAM | 5 × $10.98 | $55 | SPE5E319V3570 |
| Dec 14, 2018 | 2N935BOEING DISTRIBUTION SERVICES X, INC.HIALEAH, FLSAM | 38 × $9.15 | $348 | SPE5E319V3509 |
| Jul 22, 2008 | 5G098DMC INDUSTRIES, LLCCOMPTON, CASAM | 39 × $26.82 | $1,046 | SPM5A908M3156 |
| Nov 20, 1976 | 04169ATLAS CORP WESTERN SKY INDUSTRIESHAYWARD, CASAM | 100 × $0.65 | $65 | DSA50077AA0600005 |
Manufacturers who have won this NSN
Distinct CAGEs with a confirmed DIBBS award line for this part — each opens the manufacturer page.
Also MCRL-listed · PN WSI-4-55, WSI4-55D
Approved manufacturers
Qualified to supply per MCRL — no confirmed DIBBS award on record for this NSN. Each CAGE opens the manufacturer page.
PN 5300014-55
PN ST4M134-3-55
PN WSI-4-55, WSI-4-55NH
PN 10121562
Characteristics
FLIS item characteristics from PUB LOG identification.
| Characteristic | Value |
|---|---|
| CENTER TO CENTER DISTANCE BETWEEN MOUNTING HOLES ALONG LENGTH | INCHES MINIMUM 0.686 AND INCHES MAXIMUM 0.690 |
| DISTANCE FROM APERTURE CENTER TO MOUNTING HOLE CENTER | INCHES NOMINAL 0.344 |
| LOCKING FEATURE | PREVAILING TORQUE WITH METALLIC INSERT |
| MATERIAL | OVERALL EXCEPT INSERT ALUMINUM ALLOY 6061 |
| MATERIAL DOCUMENT AND CLASSIFICATION | LOCKING INSERT ASSN STD SINGLE MATERIAL RESPONSE A-S 7245 |
| MOUNTING HOLE DIAMETER | INCHES NOMINAL 0.098 |
| NOMINAL THREAD SIZE | INCHES 0.190 |
| NUT HEIGHT | INCHES MINIMUM 0.540 AND INCHES MAXIMUM 0.560 |
| NUT LENGTH | INCHES NOMINAL 0.985 |
| NUT MOUNTING PROVISION | STRAIGHT HOLES |
| PLATE THICKNESS | INCHES NOMINAL 0.060 |
| PLATE WIDTH | INCHES NOMINAL 0.396 |
| SURFACE TREATMENT | OVERALL EXCEPT INSERT CHROMATE |
| SURFACE TREATMENT DOCUMENT AND CLASSIFICATION | OVERALL EXCEPT INSERT MIL SPEC SINGLE TREATMENT RESPONSE -IL-C-5541 |
| THREAD CLASS | 2B |
| THREAD DIRECTION | RIGHT-HAND |
| THREAD QUANTITY PER INCH | 32 |
| THREAD SERIES | UNF |
Open buys
DIBBS · quotes by Sep 25, 2026 · UNRESTRICTED