Home · FSC 3110 Bearings, Antifriction, Unmounted · NSN 3110-00-271-0009
NSN 3110-00-271-0009 — Bearing,Roller,Airframe
NIIN 00-271-0009 · unit of issue EA · AAC Z (insurance item) · source of supply SMS
Buying rhythm
from 13 government buys since 2017
The government has bought this item about every 5 months (irregular, gaps vary ±141%). Last buy Jun 23, 2026. The gaps are too uneven to put a window on the next one.
How well this works: for irregular items, "next buy about one typical gap after the last, give or take 151 days" caught the actual next buy 31% of the time across 21,161 past buys, against 24% for a fixed "one year later" guess. A rhythm, not a schedule: DLA buys when stock and demand say so. Every item due for a buy now.
NSN 3110-00-271-0009 is the national stock number for a bearing,roller,airframe in federal supply class 3110 (Bearings, Antifriction, Unmounted). It cross-references to 6 manufacturer part numbers from 4 CAGE codes, including Rbc Aircraft Products, Inc., Rexnord Industries, LLC Div Aerosspace Bearing Operation, Timken Co; the primary is 137-317-9001. The unit of issue is EA and the FLIS list price is $356.01.
The U.S. government has bought this item 14 times on record, 4 of them in the last 24 months, most recently on June 23, 2026 at $384.47 each from Rbc Aircraft Products, Inc.. The median unit price paid over 36 months is $265.19. No seller has confirmed stock of it here in the last 60 days; watching the number is free and the first listing triggers an alert.
6
part numbers from 4 CAGEs
0
open solicitations, all agencies
4
government buys in 24 months · median $265.19
0
sellers with confirmed stock
Cross-references
Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.
| Part number | CAGE | Manufacturer | Reference | Variation |
|---|---|---|---|---|
| 137-317-9001 | 3NPS1 | Rbc Aircraft Products, Inc. | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 137-317-9001 | 77896 | Rexnord Industries, LLC Div Aerosspace Bearing Operation | 3 · Design control (vendor) | 2 · Fully interchangeable |
| 137-317-9001 | 21335 | Timken Co | 5 · Secondary reference | 9 · Reference only |
| DAS5-204-A | 77896 | Rexnord Industries, LLC Div Aerosspace Bearing Operation | 5 · Secondary reference | 1 · Not fully interchangeable |
| DSRP5 | 21335 | Timken Co | 5 · Secondary reference | 9 · Reference only |
| DSRP5-FS428 | 21335 | Timken Co | 5 · Secondary reference | 9 · Reference only |
| DSRP5-FS428 | 3NPS1 | Rbc Aircraft Products, Inc. | 5 · Secondary reference | 9 · Reference only |
| DSRP5FS160 | 3NPS1 | Rbc Aircraft Products, Inc. | 5 · Secondary reference | 9 · Reference only |
| DSRP5FS160 | 21335 | Timken Co | 5 · Secondary reference | 9 · Reference only |
| DSRP5MILG3278 | 21335 | Timken Co | 5 · Secondary reference | 9 · Reference only |
| 137-317-9001 | 70210 | Honeywell International Inc. | 7 · Replaced/superseded | 2 · Fully interchangeable |
Government demand
Nothing open right now. Last government buy Jun 23, 2026. Watch this NSN and we will email you when it is solicited.
What the government paid
| Date | Vendor | Qty | Unit cost | Amount | Buyer | Reference |
|---|---|---|---|---|---|---|
| Jun 23, 2026 | Rbc Aircraft Products, Inc. 3NPS1 | 55 | $384.47 | Dla | SPE4A626PV732 | |
| Feb 2, 2026 | R & M Government Services Inc 6FN58 | 58 | $266.50 | Dla | SPE4A626V7612 | |
| Dec 20, 2024 | Mechatronics, Inc 5V122 | 53 | $265.19 | Dla | SPE4A725F2542 | |
| Nov 14, 2024 | Mechatronics, Inc 5V122 | 73 | $265.19 | Dla | SPE4A725F1291 | |
| Jun 14, 2024 | Mechatronics, Inc 5V122 | 53 | $247.84 | Dla | SPE4A724F8713 | |
| Dec 17, 2023 | Mechatronics, Inc 5V122 | 53 | $247.84 | Dla | SPE4A224F1739 | |
| Oct 13, 2023 | Mechatronics, Inc 5V122 | 53 | $231.64 | Dla | SPE4A224F0199 | |
| Feb 17, 2023 | Mechatronics, Inc 5V122 | 53 | $231.64 | Dla | SPE4A223F3412 | |
| Oct 31, 2022 | Seal Dynamics LLC 5N582 | 36 | $182.00 | Dla | SPE4A123P0139 | |
| Oct 4, 2018 | Texas Aerospace Services Jv Dba Ruotanen Associates 672S8 | 79 | $202.38 | Dla | SPE4A619V0347 | |
| Dec 5, 2017 | Wencor, LLC 0FWK8 | 140 | $148.73 | Dla | SPE4A618F4478 | |
| Nov 22, 2017 | Wencor, LLC 0FWK8 | 72 | $148.73 | Dla | SPE4A618F3823 | |
| Oct 10, 2017 | Wencor, LLC 0FWK8 | 102 | $148.73 | Dla | SPE4A618F0755 | |
| Jul 17, 2017 | Wencor, LLC 0FWK8 | 71 | $148.73 | Dla | SPE4A615D68100005 |
Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 14 buys on record in total.
Sellers with confirmed stock
No seller has confirmed stock on this NSN in the last 60 days. Watch it and we will email you when one does, or request a quote on 137-317-9001.
Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.
DLA management data
- FLIS unit price
- $356.01
- Unit of issue
- EA
- Acquisition advice
- Z — Insurance item
- Source of supply
- SMS
- Effective
- Oct 1, 2025
Item characteristics
- Bore Diameter
- INCHES NOMINAL 0.3125
- Overall Outside Diameter
- INCHES NOMINAL 1.2500
- Outer Ring Width
- INCHES NOMINAL 0.6560
- Inner Ring Width
- INCHES NOMINAL 0.8120
- Seal Quantity
- 2
- Bearing Seal Type
- CONTACT
- Special Features
- 10 DEG SELF ALIGNMENT IN EITHER DIRECTION
- Lubrication Material
- GREASE
- Lubrication Material Document And Classification
- MIL SPEC SINGLE MATERIAL RESPONSE -IL-G-23827
- Material
- INNER RING STEEL
- Material
- ROLLER STEEL
- Material
- OUTER RING STEEL
- Material
- SEAL RUBBER SYNTHETIC
- Surface Treatment
- ALL EXTERNAL/EXPOSED METAL SURFACES CADMIUM
About this page
An NSN is 13 digits: the 4-digit Federal Supply Class and the 9-digit NIIN. Cross-references come from the federal logistics record; demand from DLA DIBBS, SAM.gov and FPDS; ADs from the Federal Register. Refreshed nightly. Market Pulse shows the whole market.
Get the daily Market Pulse
New DLA RFQs, SAM.gov notices, yesterday's awards and FAA directives, weekday mornings. Free, one click to leave.