Home · FSC 2815 Diesel Engines And Components · NSN 2815-00-397-3316

NSN 2815-00-397-3316 — Piston,Internal Combustion Engin

NIIN 00-397-3316 · unit of issue EA · AAC Z (insurance item) · source of supply SMS

Buying rhythm

from 12 government buys since 2017

The government has bought this item about every 5 months (irregular, gaps vary ±134%). Last buy Sep 8, 2026. The gaps are too uneven to put a window on the next one. 1 solicitation is open right now.

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 2815-00-397-3316 is the national stock number for a piston,internal combustion engin in federal supply class 2815 (Diesel Engines And Components). It cross-references to 3 manufacturer part numbers from 8 CAGE codes, including U S Army Tank Automotive Command Amsta-Im-Mm, Tecmotiv (Usa), Inc., Minowitz Manufacturing Co.; the primary is 11683943. The unit of issue is EA and the FLIS list price is $481.28.

The U.S. government has bought this item 15 times on record, 3 of them in the last 24 months, most recently on September 8, 2026 at $260.00 each from Tecmotiv (Usa), Inc.. The median unit price paid over 36 months is $260.00. 1 solicitation is open right now, the soonest due October 1, 2026 for 61 EA. 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.

3

part numbers from 8 CAGEs

1

open solicitation, all agencies

3

government buys in 24 months · median $260.00

0

sellers with confirmed stock

Watch NSN 2815-00-397-3316: an email the morning the government solicits or buys it, or an AD names it. Free.
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Cross-references

Part numbers filed against this stock number, with the manufacturer (CAGE) and the FLIS reference codes.

Part numberCAGEManufacturerReferenceVariation
1168394319207U S Army Tank Automotive Command Amsta-Im-Mm1 · Design control2 · Fully interchangeable
116839430L7R7Tecmotiv (Usa), Inc.3 · Design control (vendor)2 · Fully interchangeable
1168394332842Minowitz Manufacturing Co.5 · Secondary reference9 · Reference only
116839436R738Mactek Industries Corp5 · Secondary reference9 · Reference only
11683943G2341Lentzios P. - Minas P. Co5 · Secondary reference2 · Fully interchangeable
116839433NNX8Brighton Cromwell LLC5 · Secondary reference9 · Reference only
1168394302978Renk America LLC5 · Secondary reference9 · Reference only
65521602978Renk America LLC5 · Secondary reference9 · Reference only
2815003973316A00AME.C.A Etablissement Central Des Approvisionnements Des Forces Armees Royales69 · Reference only

Government demand

Open DLA RFQs (DIBBS)

What the government paid

DateVendorQtyUnit costAmountBuyerReference
Sep 8, 2026Tecmotiv (Usa), Inc. 0L7R7501$260.00DlaSPE7L526P1978
Dec 29, 2025Tecmotiv (Usa), Inc. 0L7R7300$285.00DlaSPE7L526V0496
Dec 19, 2025Tecmotiv (Usa), Inc. 0L7R735$345.00DlaSPE7L526P0714
Apr 22, 2024Tecmotiv (Usa), Inc. 0L7R7528$260.00DlaSPE7L524P0709
Apr 4, 2024Tecmotiv (Usa), Inc. 0L7R7500$260.00DlaSPE7L524P0641
Feb 7, 2024Tecmotiv (Usa), Inc. 0L7R7651$260.00DlaSPE7L524P0391
Apr 24, 2023Tecmotiv (Usa), Inc. 0L7R7189$334.00DlaSPE7L523V1182
Mar 24, 2023Tecmotiv (Usa), Inc. 0L7R7218$285.00DlaSPE7L523V1014
Oct 25, 2022Tecmotiv (Usa), Inc. 0L7R752$345.00DlaSPE7L523V0148
Aug 24, 2022Tecmotiv (Usa), Inc. 0L7R738$345.00DlaSPE7L522V3270
Nov 29, 2021Tecmotiv (Usa), Inc. 0L7R729$310.00DlaSPE7L522V0765
Oct 5, 2021Tecmotiv (Usa), Inc. 0L7R727$310.00DlaSPE7L522V0101
Sep 14, 2021Tecmotiv (Usa), Inc. 0L7R7120$299.00DlaSPE7L521V2772
Aug 10, 2021Tecmotiv (Usa), Inc. 0L7R7116$299.00DlaSPE7L521V2467
Aug 11, 2017Tecmotiv (Usa), Inc. 0L7R7470$310.00DlaSPE7L517P0611

Sources: DLA DIBBS procurement history (unit cost), DLA award history, FPDS (all agencies), SAM.gov notices. 15 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 11683943.

Request 11683943

No account needed. Goes to the sellers who carry this number or its family.

Listings appear here only while the seller has confirmed them within 60 days. Sellers: list this part free.

DLA management data

FLIS unit price
$481.28
Unit of issue
EA
Acquisition advice
Z — Insurance item
Source of supply
SMS
Effective
Oct 1, 2025

Item characteristics

Furnished Items
SKIRT BOTTOM CUTAWAY FEATURE AND RETAINING RING GROOVE
Overall Height
INCHES MINIMUM 6.464 AND INCHES MAXIMUM 6.474
Diameter
INCHES MINIMUM 5.741 AND INCHES MAXIMUM 5.742
Pinhole Diameter
INCHES MINIMUM 2.1268 AND INCHES MAXIMUM 2.1270
Surface Finish
FINISHED
Finished Size Designation
STANDARD
Skirt Type
SOLID
Cut Depth
INCHES NOMINAL 0.380
Ring Groove Quantity
4
Ring Groove Width
FIRST RING INCHES MINIMUM 0.0995 AND INCHES MAXIMUM 0.1005
Ring Groove Width
THIRD RING INCHES MINIMUM 0.0980 AND INCHES MAXIMUM 0.0990
Ring Groove Width
FOURTH RING INCHES MINIMUM 0.1880 AND INCHES MAXIMUM 0.1890
Ring Groove Width
SECOND RING INCHES MINIMUM 0.0990 AND INCHES MAXIMUM 0.1000
Groove Taper Angle
7 DEGREE 25 MINUTES PORM 5 MINUTES NUMBER 1
Ring Groove Diameter
THIRD RING INCHES MINIMUM 5.210 AND INCHES MAXIMUM 5.220
Ring Groove Diameter
FIRST RING INCHES MINIMUM 5.187 AND INCHES MAXIMUM 5.192
Ring Groove Diameter
FOURTH RING INCHES MINIMUM 5.169 AND INCHES MAXIMUM 5.179
Ring Groove Diameter
SECOND RING INCHES MINIMUM 5.210 AND INCHES MAXIMUM 5.220
Distance From Pin Hole Center To Extreme Top
INCHES MINIMUM 4.344 AND INCHES MAXIMUM 4.354
Pin Type For Which Designed
FLOATING
Weight
OUNCES 127.7

Related stock numbers

Other NSNs filed under the same part numbers.

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.

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