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NSN catalog · 90,857 parts Quote list Online store ↗

Catalog › Parts manuals › TM 9-2320-280-24P › Muffler and Pipes › Fig. 24

HMMWV Muffler, Exhaust Pipes, and Related Parts TM 9-2320-280-24P · Fig. 24

Every part in figure 24 of TM 9-2320-280-24P (HMMWV M998 series (A0, A1 and A2) repair parts), group 0401 Muffler and Pipes: 28 lines, 23 on our own shelf in Augusta, GA. The rest we source — select what you need and send one quote request, answered within one business day.

TM 9-2320-280-24P figure 24, Muffler, Exhaust Pipes, and Related Parts: exploded drawing with item numbers

Drawing from TM 9-2320-280-24P, approved for public release. Open it full size to zoom.

Your truck

Item	Part	Qty	On our shelf
1	Muffler-Exhaust Pipe Nonai Guard NSN 2990-01-411-2728 · P/N 12460087 GUARD,MUFFLER-EXHAU Fits: All A2 models, plus M1123	1	4 in stock $100–$165 eachtypical
2	Hose Clamp NSN 4730-00-908-6292 · P/N 11608950-13 CLAMP,HOSE 3.50-2.56 Fits: All A2 models, plus M1123	3	282 in stock
3	Loop Clamp NSN 5340-01-484-7760 · P/N 12338343-2 CLAMP,LOOP Fits: All A2 models, plus M1123	2	86 in stock $45–$85 eachtypical
4	Vehicular Insulation NSN 2510-01-414-1275 · P/N 12460082 INSULATION,THERMAL, Fits: All A2 models, plus M1123	1	2 in stock $75–$125 eachtypical
5	Muffler-Exhaust Pipe Nonai Guard NSN 2990-01-411-3954 · P/N RCSK18375 GUARD,MUFFLER-EXHAU Fits: All A2 models, plus M1123	1	3 in stock $70–$115 eachtypical
6	Retaining Strap NSN 5340-01-212-4887 · P/N 5588675 STRAP,RETAINING Fits: All A2 models, plus M1123	6	772 in stock $14.70our price Buy online ↗
7	Flat Washer NSN 5310-00-080-6004 · P/N MS27183-14 WASHER,FLAT 3/8 Fits: All A2 models, plus M1123	54	1,146 in stock $7.83our price Buy online ↗
8	Cap Hexagon Head Screw NSN 5305-00-068-0511 · P/N B1821BH038C125N SCREW,CAP,HEXAGON H 3/8-16 X 1.25 Fits: All A2 models, plus M1123	12	1,907 in stock
9	Plain Extended Washer Hexago Nut NSN 5310-01-012-8962 · P/N 9416918 NUT,PLAIN,EXTENDED Fits: All A2 models, plus M1123	3	We can source it
10	Self-Locking Hexagon Nut NSN 5310-00-935-9021 · P/N MS51943-35 NUT,SELF-LOCKING,HE 3/8 X 16 Fits: All A2 models, plus M1123	31	219 in stock
11	Mounting Bracket NSN 5340-01-413-2689 · P/N 12460083 BRACKET,MOUNTING Fits: All A2 models, plus M1123	1	We can source it
12	Vehicular Insulation NSN 2540-01-309-4459 · P/N 5588778 INSULATION,THERMAL, Fits: All A2 models, plus M1123	2	21 in stock
13	Cap Hexagon Head Screw NSN 5305-00-782-9489 · P/N B1821BH038C200N SCREW,CAP,HEXAGON H 3/8-16 X 2.00 Fits: All A2 models, plus M1123	12	365 in stock
14	Exhaust Muffler NSN 2990-01-411-3947 · P/N 12460090 MUFFLER,EXHAUST Fits: All A2 models, plus M1123	1	6 in stock $416.26 per eachgov't list price
15	Manifold Seal Assy NSN 5330-01-189-9738 · P/N 12338342 SEAL ASSY,MANIFOLD Fits: All A2 models, plus M1123	2	66 in stock $25–$60 per assemblytypical
16	Catalytic Automotive Converter NSN 2990-01-412-0142 · P/N 12460091 CONVERTER,CATALYTIC Fits: All A2 models, plus M1123	1	We can source it $1,951.13 per eachgov't list price
17	Angle Bracket NSN 5340-01-211-3137 · P/N 12338340 BRACKET,ANGLE Fits: All A2 models, plus M1123	1	We can source it $75–$125 eachtypical
18	Nonmetallic Grommet NSN 5325-01-187-1604 · P/N 12338338 GROMMET,NONMETALLIC Fits: All A2 models, plus M1123	2	1 in stock
19	Flat Washer NSN 5310-01-211-3811 · P/N 9417793 WASHER,FLAT Fits: All A2 models, plus M1123	4	10 in stock
20	Engine Exhaust System Hanger NSN 2990-01-211-8587 · P/N 12338346 HANGER,ENGINE EXHAU Fits: All A2 models, plus M1123	1	10 in stock $45–$90 eachtypical
21	Gasket NSN 5330-01-200-0466 · P/N 12338339 GASKET Fits: All A2 models, plus M1123	3	73 in stock $25–$40 eachtypical
22	Cap Hexagon Head Screw NSN 5305-00-782-9489 · P/N B1821BH038C200N SCREW,CAP,HEXAGON H Fits: All A2 models, plus M1123	3	365 in stock
23	Loop Clamp NSN 5340-01-212-3553 · P/N 12338343-1 CLAMP,LOOP Fits: All A2 models, plus M1123	1	16 in stock $20.57our price Buy online ↗
24	Exhaust Pipe NSN 2990-01-190-1089 · P/N 12338350 PIPE,EXHAUST Fits: All A2 models, plus M1123	1	18 in stock $183.72 per eachgov't list price
25	Lock Washer NSN 5310-00-637-9541 · P/N MS35338-46 WASHER,LOCK Fits: All A2 models, plus M1123	2	1,162 in stock
26	Cap Hexagon Head Screw NSN 5305-00-068-0510 · P/N B1821BH038C100N SCREW,CAP,HEXAGON H 3/8-16 X 1.00 Fits: All A2 models, plus M1123	2	26 in stock
27	Cap Hexagon Head Screw NSN 5306-00-821-3869 · P/N B1821BH038C175N SCREW,CAP,HEXAGON H 3/8-16 X 1.75 Fits: All A2 models, plus M1123	2	201 in stock $14.70our price Buy online ↗
28	Exhaust Pipe NSN 2990-01-414-4072 · P/N 12460086 PIPE,EXHAUST Fits: All A2 models, plus M1123	1	We can source it $781.09 per eachgov't list price

Buy the 4 in-stock parts on our store ↗

Qty is how many the assembly uses, as the manual lists it. Our price is our online store's price: Buy online opens that part on secoparts.net for card checkout. Typical is an estimate from the government catalog price and what we have charged for similar parts — not a quote. Gov't list price is the government catalog (FEDLOG) price, a public reference, not ours. "Fits" comes from the manual's usable-on codes; a line without codes applies to every model.