RING,RETAINING
Price to win
From deduped DIBBS award lines (unit cost × quantity). Not a bid recommendation — observed history only.
Average unit cost
$6.42
Weighted average
$4.87
Weighted by quantity
Observed range
$2.50–$12.50
Coverage
10 awards
Apr 13, 1999 – Sep 9, 2025
Average: $6.42 · Weighted avg: $4.87 · Range: $2.50–$12.50 · Based on 10 awards, Apr 13, 1999–Sep 9, 2025.
Unit cost by award date · 10 priced lines
DIBBS award history
Distinct award lines for this NSN (deduped). Line total is unit cost × quantity.
10 distinct award lines
| Date | Manufacturer | Qty × unit | Total | Contract |
|---|---|---|---|---|
| Sep 9, 2025 | 1HEN9NOBLE SUPPLY & LOGISTICS, LLCBOSTON, MASAM | 243 × $8.82 | $2,143 | SPE4A525FBH8Y |
| Oct 24, 2022 | 8U976R. L. MORRISSEY & ASSOCIATES, INCSOLON, OHSAM | 139 × $6.45 | $897 | SPE4A623V1739 |
| Aug 12, 2021 | 8U976R. L. MORRISSEY & ASSOCIATES, INCSOLON, OHSAM | 50 × $6.63 | $332 | SPE4A621V658X |
| Jul 19, 2021 | 8U976R. L. MORRISSEY & ASSOCIATES, INCSOLON, OHSAM | 36 × $6.89 | $248 | SPE4A621V525W |
| Oct 21, 2019 | 8U976R. L. MORRISSEY & ASSOCIATES, INCSOLON, OHSAM | 136 × $5.63 | $766 | SPE5E420V0605 |
| Sep 13, 2017 | 8U976R. L. MORRISSEY & ASSOCIATES, INCSOLON, OHSAM | 104 × $5.89 | $613 | SPE5E417VA407 |
| Mar 5, 2013 | 0L7R7TECMOTIV (USA), INC.NIAGARA FALLS, NYSAM | 606 × $2.50 | $1,515 | SPM5E413V2073 |
| Mar 5, 2013 | 57550RELLI TECHNOLOGY, INCBOCA RATON, FLSAM | 169 × $4.85 | $820 | SPM5E413V2146 |
| Aug 3, 2006 | 8U976R. L. MORRISSEY & ASSOCIATES, INCSOLON, OHSAM | 395 × $3.99 | $1,576 | SPM5A106V4606 |
| Apr 13, 1999 | 32783LASMER INDUSTRIES INCKERRVILLE, TXSAM | 30 × $12.50 | $375 | SP054099MBP26 |
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 8351583
Characteristics
FLIS item characteristics from PUB LOG identification.
| Characteristic | Value |
|---|---|
| CASEHARDENING INDICATOR | CASE-HARDENED |
| INSIDE DIAMETER | INCHES MINIMUM 5.665 AND INCHES MAXIMUM 5.790 |
| MAJOR THICKNESS | INCHES MINIMUM 0.107 AND INCHES MAXIMUM 0.111 |
| MATERIAL | STEEL |
| MATERIAL DOCUMENT AND CLASSIFICATION | FED SPEC SINGLE MATERIAL RESPONSE QQ-W-428 TYE 2 |
| MATERIAL HARDNESS RATING | ROCKWELL C MINIMUM 43.0 AND ROCKWELL C MAXIMUM 50.0 |
| OUTSIDE DIAMETER | INCHES MINIMUM 6.165 AND INCHES MAXIMUM 6.290 |
| USAGE DESIGN | INTERNAL |
Open buys
DIBBS · quotes by Sep 24, 2026 · UNRESTRICTED